Cedar Wood Planters Uk? 77 Most Correct Answers

From vintage soda crates to old tool boxes, there are many fabulous wooden containers you can find for a great price or even free. And they can be turned into a quaint DIY wooden planter for indoor or outdoor use. Repurposing wooden containers into planters can make a rustic and organic design statement. Plus, it’s an eco-friendly choice for breathing new life into something that might have just been thrown away.

Here’s what you need to know about creating a DIY wooden planter.

Warning Before planting in a painted box, check to see if the paint contains lead. You can use a simple lead test kit that you can find at many hardware stores. Edible plants grown in a container coated with lead paint can absorb the heavy metal. And paint chips containing lead can pose an environmental hazard. Low levels of lead can also cause health problems, especially in children.

Choosing wood for DIY planters

Wooden planters don’t last as long as plastic, clay, or concrete containers. Eventually they will start to rot due to holding moist soil and exposure to the elements. In addition, the nails and all other metal parts used in their manufacture can begin to rust and corrode.

However, wooden crates can last for many years if made from the right type of wood and cared for properly. Here are some good types of wood to use since they’re fairly resistant to rot, insect damage, and more:

cedar

redwood

cypress

teak

While you can use reclaimed lumber to build a planter, think carefully before using pressure-treated lumber. Some older pressure-treated woods are preserved with arsenic, which you don’t want to use on edible plants. It is stamped with a CCA (Chromated Copper Arsenate) label.

Although newer pressure-treated wood should not contain arsenic, it still contains chemicals to preserve it. So if you’re using pressure-treated wood, you might want to reserve your containers for ornamental plants only.

Also, never use creosote-soaked railroad ties for planters, whether they contain edible or ornamental plants. This oily preservative contains hundreds of chemicals that can have many adverse health effects.

The Spruce / Adrienne Legault

Preservation of wooden containers

If you’re growing plants in your wooden container that are purely ornamental—not for eating—you can seal the planter with a chemical sealer to extend its life. Apply it to both the inside and outside surfaces of the planter.

However, if you plan on eating your plants, avoid traditional wood sealers as they usually contain unhealthy chemicals that can be released into the potting soil and absorbed by the plant roots. Fortunately, there are some wood preservative treatments that are safer than chemical wood sealers for containers where edibles are grown:

Spread-on products that contain Acypetacs (a common brand name is Cuprinol) are considered safer than chemical sealants. However, the wood must be treated more frequently than with chemical sealers.

Water-based preservatives based on boron salts are considered safe; they are generally applied in varnish or gel form. However, they do not bond well to wood and often need to be reapplied.

Made from flaxseed, linseed oil has good wood preservative properties but takes quite a long time to dry. Avoid products mixed with solvents such as mineral spirits. And be aware that linseed oil is combustible before it dries.

How to build DIY planters

If you start with an existing wooden container, it only takes a few steps to prepare it for planting.

Check the tank’s drain: fill the empty box with water and see how long it takes to drain. With water draining freely out of the bottom seams of the box, no additional drainage is needed. However, if the box contains water for more than a minute, go to step 2. (Otherwise, skip to step 3.) Add drainage holes, if needed: Drill several 1/2-inch holes in the bottom of the box. Also add a few holes in the sides of the container near the bottom. Line the planter with porous landscaping fabric: The landscaping fabric allows water to drain out of the container while preventing wet soil from coming in direct contact with the wood and shortening its lifespan. The weave also prevents soil from escaping through wide gaps in the wood. Choose Your Plants: Choose plants that are appropriate for the length, width, and depth of the container. For example, shallow boxes should have shallow-rooted plants like succulents. Microgreens and most lettuce also work well in a shallow box. Also choose a potting soil that is suitable for the type of plant you have chosen.

The Spruce / Adrienne Legault

The Spruce / Adrienne Legault

The Spruce / Adrienne Legault

The Spruce / Adrienne Legault

Tips for growing in wooden containers

Once you’ve created your wooden planter, here are some tips to ensure its longevity and the success of your plants.

Set the planter on pot feet or small blocks of reclaimed wood if it is going to stand on a wooden deck or patio area. This prevents trapped moisture from affecting the underlying surface and allows room for the planter to drain.

At the end of the growing season, empty the container of plants and soil. Keep it in a dry place for the winter.

Reapply a fresh treatment of your favorite sealer at least annually.

The soil in smaller wooden planters dries out fairly quickly. So be sure to monitor them closely and water the plants as needed.

Large wooden planters can be very heavy. Consider using a light fill material at the bottom if your plants don’t take up all the space with their roots.

Use commercially available potting soil in your planter instead of ordinary garden soil. Potting soil has the nutrients your plants need. Also, garden soil generally doesn’t have as good drainage, which can rot your wooden planter and affect plant health.

When it comes to gardening, one material rules: western red cedar. Thanks to its unique natural properties, cedar is the ideal choice for planters and raised beds. And while there are countless cedar wood products on the market, many crafty gardeners choose to build their own DIY planters, which is a fun weekend project.

In this cedar planter box guide, we cover everything you need to know about the material and recommend a few cedar planters to add to your garden this gardening season.

What is a cedar planter box?

Cedar planters are made from wood from western red cedar trees native to North America. It’s lightweight, durable and resists cracking with little to no maintenance and care, making it a popular choice for garden supplies. Plus it smells amazing!

What makes cedar good for planters?

The wood used in planters not only has to look good, it also has to last a long time. Here are a few qualities that make cedar one of the most popular choices for planter boxes:

Naturally Repels Bacteria, Fungus, and Insects – While other wooden planters require treatments and sealers to prevent rot and stop insects, cedar is naturally resistant to bacteria and fungus.

While other wooden planters require treatments and sealers to prevent rot and stop insects, cedar is naturally resistant to bacteria and fungus. Thermal Coefficient – ​​Cedar naturally stays cool, helping to keep plant roots at a stable temperature in hot, humid weather.

Cedar naturally stays cool, helping to keep plant roots at a stable temperature in hot, humid weather. DURABLE AND LONG LASTING WITHOUT MUCH MAINTENANCE – Thanks to its natural oils, cedar wood ages well, resists cracking and requires little maintenance.

How long do cedar planters last?

If you’re going to spend a few hundred dollars on a new planter, or take the time and effort to build your own out of a few planks, be sure you’re choosing materials that are built to last. Thanks to its bacteria and rot resistance and natural oils, a cedar planter box can last up to 10-15 years with proper care. During this time, you’ll likely need to replace a few worn inserts and refresh the planter with new soil to keep it looking its best.

It is important to note that the lifespan of a planter box is highly dependent on location, use and care. Factors like sun, wind, climate, and how you care for both your plants and soil can all affect the lifespan of your planter. Additionally, treated wood tends to last longer than untreated wood thanks to the addition of rot, insect and water repellent chemicals.

Do cedar raised beds need to be lined?

Whether or not you choose to line your planter with cedar is entirely up to you. While an untreated cedar box will do just fine without a liner, using a plastic liner or landscape fabric can help it last longer.

When lining a planter, it is crucial to use non-toxic materials. In addition, to prevent water from accumulating in the container, you must ensure that the liner has holes or create a proper drainage system to prevent rot and disease.

The best cedar planter boxes

If you’re thinking about growing your own plants or vegetables but are short on space, a raised planter is just what you need. Perfect for teaching children how to grow their own food, helping them learn life skills and even encouraging them to eat vegetables, garden crates have become an incredibly popular item across the UK.

From preventing soil compaction and preventing erosion to providing better water retention and drainage, elevated planter boxes offer many gardening benefits to both experienced and novice gardeners. But let’s also not forget how stunning they can make your outdoor space look.

Choosing the right material for your planter box is a crucial decision in preventing unwanted weeds, preventing overheating or rusting and ultimately ensuring a suitable growing space. There are many options, but only one meets these requirements and that is wooden planter boxes.

So which type of wood is best for planters? Cedar and redwood are two of the most commonly available types of wood, and you can’t go wrong with either. Cedar wood is particularly popular due to its durable, lightweight and crack-resistant properties. Redwood, on the other hand, is naturally rot-resistant and has a longer lifespan, but can be a more expensive alternative.

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Advantages and disadvantages of the most common types of wood

To help you make an informed decision, we have compiled a list of the top four types of wood for planters. Other suitable options include Cypress, Teak, Accoya, and Yellow Balau.

Type of wood Pros Cons Cedar Durable (Janka rating of 900 lbf).

Resistant to harsh weather conditions and pests.

Easy.

Can last between 10 and 15 years.

Doesn’t crack.

Easy maintenance.

Does not need to be stained or sealed. May fade to a weathered gray over the years, which some find attractive. Redwood Durable (Janka rating of 3,190 lbf).

Immediately available.

Inherently rot-proof.

Are known not last up to 20 years.

Easy maintenance.

Not treated with chemicals. More expensive than other alternatives.

Requires sealing to prevent cracking. Pine Durable (Janka rating of 1,630 lbf)

Very diverse.

affordability.

Easy.

Resists shrinkage and swelling

Attractive grain options Pressure treated pine contains chemicals to preserve the wood.

Prone to scratches and dents Iroko Durable (Janka rating of 1,260 lbf)

Rot and insect resistant

Qualities of heat moderation

moisture resistant

Renowned aesthetics Hard to find

Higher cost

Higher maintenance requirements

Looking for a wooden plant box?

Are you ready to buy wooden raised beds? Check out our two best sellers below or browse our entire wooden planter collection. We also work with schools and local authorities across the UK to provide bespoke vegetable planters so please contact us to discuss your project!

Check out our wooden planters

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In urban areas, planter boxes and raised beds (or raised beds) are the best options for those who love gardening. So if you’re thinking of building a garden, the first thing you need to answer is, “What is the best wood for planters and raised beds?”

Before planting your herbs and veggies, be sure to use the best wood for your planter or raised bed. Using the wrong wood can lead to chemicals in your food!

Best wood for plant boxes and raised beds

It is imperative to use wood that is environmentally friendly, affordable and durable.

Spruce, pine, redwood, juniper, chestnut and cedar are the best and most popular woods for planters. They are rot-resistant, food-safe, readily available, and don’t pollute the soil in the long term.

However, before you buy any of these woods, you should also keep their disadvantages in mind.

Summary of the best wood for planters and raised beds

Type of wood Advantages Disadvantages Spruce – knot-free.

– Cheap.

– Very light and soft.

– Stay cool in hot temperatures.

– Dries quickly. – Susceptible to diseases.

– Not drought tolerant.

– Cannot stand the humidity.

– May be damaged by insects if improperly coated. Pine – Wide range of finish options.

– Strong and durable.

– Resistant to shrinkage and swelling.

– Very striking appearance. – Ordinary pine wood often has imperfections.

– Requires more maintenance. Redwood – Does not shrink or decay as it ages.

– Visually stunning.

– Resists natural wear and tear.

– Can withstand harsh climate conditions and survive harsh weather conditions.

– Resistant to extreme heat. – Soft and prone to dents.

– It is important to maintain and clean it regularly.

– Has become an endangered species due to high demand. Juniper – Very rot resistant.

– Tolerant to windy and rainy conditions.

– Efficiently handles a variety of soils.

– Prevents serious pest problems.

– Lasts longer. – Very close.

– Generally more expensive. Chestnut – Prevents fungal root diseases.

– Available in different shades.

– Rare and valuable.

– Softer hardwood.

– Significantly lighter than most other types of wood. – Regular maintenance required.

– The prices are relatively higher.

– Can be easily damaged by insects. Cedar – Resistant to insect infestation.

– Can last 15-20 years.

– Thrives very well in moist environments.

– Naturally beautiful.

– Works well with a light coat. – Turns gray with weathering over the years.

– More flammable.

If you’re just starting out, we recommend going for ‘cedar’. It is a naturally rot-resistant wood, works well with garden soil and looks good. It does not require much maintenance and is resistant to harsh weather conditions and insects.

Can I buy a plant box online?

Yes, you can buy a planter box online. Check out some options below:

Are you planning to redesign your terrace with a planter box? Get Jumbl Elevated Planter Box. It is made from 100% rot-proof cedar wood.

You can easily grow your favorite herbs, vegetables, fruits or flowers. It is also excellent for growing succulents such as snake plants.

Its elevated design is a great choice for gardeners with muscle strains or chronic back pain.

We love this planter box for so many reasons. It is made of naturally aged pine wood. Also, it has a dusty mottled brown coloring that suits almost all types of outdoor decor.

Use it for mini plant floral arrangements as the dimensions of this planter box are 17.3 x 3.9 x 3.9 inches.

It’s sturdy, beautiful and easy to assemble. This planter is made from real wood that will add a rustic charm to any setting.

The vintage look of this planter makes it an ideal choice for indoor and outdoor decoration.

If you want to build your own garden bed or garden box, this is one of the best raised bed kits on the market. As recommended by us, this set is made from 100% cedar wood, making it naturally rot resistant.

This kit is incredibly easy to assemble and is made of durable wood. So buy yours now!

frequently asked Questions

What is pressure treated wood?

Pressure treated wood undergoes a special process that adds chemicals to the wood to preserve the life of the wood.

It doesn’t make the wood stronger, but it does extend the life of the wood by making it less susceptible to rot and insect infestation.

Pressure treated timbers are generally safe to use but are not recommended for vegetable or orchards.

The chemical preservatives used in pressure-treated wood can be absorbed into the soil and then into your plants.

The preservatives that end up in your plants are usually small amounts that are non-toxic, but for this reason we do not recommend using pressure-treated wood on plants that you intend to consume.

Can we use teak for planters?

Teak is indeed a great choice for your planter boxes or raised beds. However, it is not often recommended by experts as it is expensive and not as readily available.

This wood has a high natural oil and silica content, which is good for the soil. In addition, teak is very resistant to rot.

The only downside to teak is that you need to apply a coat of sealer every year to protect its natural beauty and color.

How long does untreated wood last in a planter or raised bed?

Untreated wood lasts about 4 to 5 years outdoors, but this depends on many other factors such as: B. how well you take care of the wood, soil type, planter structure, climatic conditions, sun exposure, etc.

Some special steps such as sealing, painting, gluing or using water-repellent preservatives can even extend the lifespan, up to 15 to 20 years.

If the only focus is keeping your planter box from rotting, use rot-resistant wood like cedar or redwood.

You can also apply roofing cement inside the planter box to prevent water from damaging the wood.

What type of wood to avoid?

For garden beds and garden boxes, you should avoid recycled or older CCA-treated wood. This is because they are entirely second hand and no one knows how they have been treated throughout their lives.

Because of this, there is a high chance that older or second-hand treated wood will release harmful organic compounds that can damage your plants and become dangerous for the environment.

Untreated wood such as pine is the least durable and is not recommended. It will warp and start to rot within three to five years. Cedar and redwood are naturally resistant to rot and insect infestation, which is why they are often used for decks and fencing. These materials will typically last 10 to 20 years in a raised bed garden.

Wood composite products, which are made from a combination of wood fibers and polypropylene with UV light protection, are often used as decking materials because they are quite durable. They appear to be about as resistant to cracking, discoloration, mold, and mildew as cedar, according to the University of Georgia Extension. Pressure treated wood is also very durable, but is not recommended for vegetable gardens due to the risk of harmful chemicals leaching into the soil.

Do you have a metal or wooden plant box that needs to be protected from moisture? You’ll be amazed at how many ways you can protect your planter boxes. Waterproof planter liners come in many forms. Here’s what you need to know to improve the durability of your planter boxes.

What is a waterproof liner?

Waterproof liners are mostly made of plastic. They come in many forms, from plastic containers to plain old plastic wrap. In some cases, you can also get spray-on liners.

Liners are designed to protect your box from the constant moisture of the potting soil. They are the best way to prevent your planter from rotting prematurely if you are using wood, or rusting in the case of metal. With proper use, you should be able to get many more years out of your planter.

Types of waterproof liner for planter boxes

If you want to line your planter, you must first decide on an insert. If you’re a little confused, consider one of the following options:

1. Plastic pots

Plastic pots are very useful. They can be placed in other containers like your wooden planter. This way you can remove the entire container when you need to water your plant and simply put it back in the planter afterwards. Your planter box will never come into contact with water if done right, making it last a very long time.

2. Plastic wrap

If you want a more permanent liner, plastic wrap is a good option. Simply staple or glue to the inside of your plant box. Remember to create drainage holes in the plastic. Most plants will rot and die if left in water for too long.

3. resin

It is possible to make planter boxes waterproof by lining them with cloth dipped in resin. As the resin dries, it forms a sealed layer that protects your planter from moisture.

4. Fiberglass

This method is a little more complicated and a little dangerous. Fiberglass provides a great finish that protects your flower pot from moisture. Unfortunately, fiberglass can be dangerous if inhaled or touched on the job, so make sure you have the right safety gear.

5. Pond liner

Pond liner is another great option for lining planters. It can be quite difficult to work with. You need to line the planter and then create drainage holes to keep your plants healthy.

Check out these pond liners:

6. Varnish

Varnish is another effective way to protect wooden planters. Simply apply the required amount of coats and you’re good to go.

7. Spray on liner

It is possible to spray on plastic or silicone inserts for planters. If you choose this option, you will need to prep your planter before spraying on the required amount of foil. This type of liner is very good for protecting wooden crates, making them last much longer.

Check out these spray-on liners:

Alternatives : fiber inserts

It might be worth checking out these fiber inserts, which are ideal for planter boxes and hanging baskets. While not 100% waterproof, they make an excellent lining for planter boxes and flower pots.

Why you should line your planter boxes

There are some benefits associated with lining planter boxes. You can look forward to:

Improved durability

Plastic liners provide your planters with an improved lifespan. Without the constant moisture, rot will take longer to set in and destroy your planters.

healthy plants

The right amount of moisture keeps your plants healthy. If you have a planter that allows for a lot of evaporation, a plastic liner is a big help when it comes to keeping your plants moist and therefore healthy.

Less rot

Planters take longer to rot if protected by plastic wrap. However, remember that there will be a time when rot will set in. Finally, some plastic inserts do not fully protect the wood.

More planting options

Using plastic liners opens up the possibility of planters you never even thought of. This includes planters made from coconut fiber and those without drainage holes.

frequently asked Questions

Does a wooden plant box need a plastic insert?

Yes, wooden planters will last much longer if lined with plastic. Plastic inserts prevent moisture from constantly coming into contact with the wood. This, in turn, prevents the wood from rotting prematurely.

How do you make a planter box waterproof?

How, depends on the liner. If it’s a pot, just place it in your planter of choice, if it’s a plastic sheet, glue or staple. If you prefer the liquid version, you can either paint or spray it on.

What should I line the bottom of a planter with?

To prevent soil from falling out, you can place coffee filters or fine wire mesh over the drainage holes. You can also use newspaper or cheesecloth for this purpose.

step 5

Only apply diluted bleach to the cedar planters if you notice mold. Bleach will kill the mold, but there’s also a chance it will discolor the planter, so you should only use this as a last resort. If using bleach, add one cup of bleach to one gallon of water for proper dilution. Wear rubber gloves to protect your hands and use a sponge or rag to apply. Also, make sure you apply the bleach solution to the entire planter, not just the moldy area; If the bleach stains the planter, it will be less noticeable if the entire planter is evenly stained. After application, do not rinse off the solution; Let it sit for maximum penetration and mold removal.

Gardening in raised beds or planters has many advantages: the improved ergonomics, the clean look, the ability to fill them with quality soil and compost, and it’s easier to repel pests. I love raised beds! One of the few downsides, however, is that they don’t last forever (and they’re not exactly cheap). So protect your valuable investment and follow these 7 ways to extend the life of wooden garden beds! We’ll talk about how to waterproof garden beds, wood selection, drainage and more.

I admit we have never sealed our garden beds in the past. They’re made from super durable core sequoia, after all! However, as we moved into our new homestead and started building our “eternal garden” (and felt the rude awakening of not being in our 20s anymore during the arduous process), I thought to myself: I want these garden beds to last LONG as physically possible.

In fact, we’ve seriously considered buying some fantastic galvanized metal raised bed kits from Birdie instead. Those things should last forever! (And you can save 5% with the code “deannacat3”). But in the end, my love for the look of rustic wood won that battle, and here we are: We just built 19 new redwood garden beds, this time sealed and siliconized. Do it once and do it right.

After reading these tips, stop by and follow our step-by-step guide to building wooden raised beds!

Our brand new garden. Can’t wait to see them planted and full of life!

WAYS TO EXTEND THE LIFE OF GARDEN BEDS

1) Choose wood that is naturally durable

One of the best ways to extend the life of raised beds is to use high-quality, durable wood from the start. Cedar and redwood are two excellent choices as they are both very dense and durable. Thanks to their high tannin content, both cedar and redwood are naturally resistant to rot, mold, and insects—including termites. Heart Redwood lumber (which we use to build our raised beds) is even more indestructible than ordinary redwood planks.

Garden beds made from untreated cedar or core sequoia alone can last well over a decade – likely much longer depending on climate and other conditions. The 7 year old untreated Heart Redwood beds in our old garden are still in excellent condition. I’ve also heard stories from friends of redwood beds that last well over 20 years! If you then follow the other ways to make garden beds last longer, as detailed below, you can add several years to their lifespan.

In comparison, garden beds made from softer woods like Douglas fir or pine can rot and rot within a few years. Also, don’t be tempted to use pressure-treated wood (usually treated pine) to make garden beds last longer! Aside from containing unwanted chemicals that aren’t ideal for organic gardening, the lifespan of treated wood is less than cedar or sequoia anyway! Especially if it is in constant contact with soil and moisture – as will be the case in your garden.

Heart redwood garden beds of different ages in our old garden. The big bed in the back (most grey) is about 6 years old in the photo. Although the color has faded with age, it is still completely structurally sound. The bed in the front is 1-2 years old and the smallest one on the left was brand new.

2) Use wide boards and thick boards

Choosing wide wooden planks is another excellent way to extend the life of wooden garden beds. For example, a raised bed made from 2×6 inch planks will last longer than one made from 2×4 inch planks. Eight, ten, or twelve inch wide boards are even better! Raised beds are most prone to rot in the joints between the boards, where moisture collects and air is scarce. By using wider planks (and thereby reducing the number of seams in the bed overall) the surface area and points for water entry are reduced.

The same idea applies to plate thickness. While 1-inch planks are often cheaper (e.g. cedar fence boards, which are actually only ¾ inch thick), the raised bed will not last as long as one built with 2-inch planks. Also, thinner boards are more likely to bend or even break over time under the pressure of heavy, wet soil pressing against them. Last but not least, thick 4×4″ corner supports will last much longer than using 2×4″ or other smaller wood in the corners.

We make our Heart Redwood raised beds using 4×4 corners and 2×6 inch planks. These beds were extra high, but now we usually make them 3 boards high. We just couldn’t find any 8″, 10″ or 12″ high boards here – but we would use those if we could!

3) Seal wooden beds (with non-toxic sealer)

Sealing wooden garden beds can help extend their lifespan by many years beyond unsealed wood. Applying a sealer protects the wood from the ingress of moisture, mold and rot. However, you don’t want to use just any wood sealer on your garden beds! Many sealers and stains contain toxic chemicals—things you don’t want in your healthy, homegrown food and soil.

We recently used this non-toxic wood sealer on our new redwood garden beds. If you know me then you know that I do my homework before choosing materials for our house and garden! This particular product is food safe, made in the USA, non-leaching, contains no volatile organic compounds, carcinogens or endocrine disruptors and is non-toxic to wildlife. Plus it gets great reviews!

We ended up applying 3 coats of Garden Seal to the inside of our beds (where rot is most likely) and had enough left over to just apply 1 coat to the outside. It rises milky white, penetrates well into the wood and dries clear with a slightly satin finish. However, the third coat inside the beds left a visible residue, so a coat or two would be best for the exterior. Make sure your wood is completely dry before applying.

Hope’s natural tung oil is another non-toxic option for sealing garden beds, although I’ve heard it’s best to reapply annually – which is why we chose the other sealant. This would be a good option for sealing the outside of garden beds where routine use is possible.

The non-toxic wood sealer we used on our new raised beds. We got a 5 gallon bucket since we were sealing 16 4×8′ beds (plus a few smaller ones). After only applying three coats to the interior, we went through about 3/4 of the bucket. So the smaller 1 gallon option would cover most home garden projects.

Applying the seal with a paint roller. If you plan to seal both (all) sides of your wood, it’s MUCH easier to seal the boards before assembling your raised beds. We decided not to seal our beds until after they were already built (and only did the insides at first) so we applied the sealer to the beds already assembled.

Unsealed redwood on the left and after a layer of sealing on the right.

We were in a bit of a rush to get our new beds ready for spring, so we just sealed the insides first. Then when things settled down I went back and applied a coat of sealer to the outside of the beds as well. You can see how much it brings out the color and wood grain (top/right sealed, left unsealed).

4) Seal bed seams

In addition to sealing the wood itself, you should also seal the gaps between the boards. Again, wooden garden beds are most susceptible to rot in their deepest nooks and crannies, including the corners and horizontal seams between the wood. When building our latest raised beds, we applied clear silicone to all seams – which is waterproof, inert and non-toxic once dry. My friend Steve has been professionally building and maintaining organic gardens for over 25 years, and he claims that this single step can add 5 to 10 years to the life of garden beds!

We used premium grade 50 exterior silicone (or a similar option) to seal our garden beds along the interior seams only. Grade 50 silicone is far more durable, flexible and resistant to temperature changes than lower rated grades. This is important because garden beds are exposed to fluctuating temperatures and wood constantly swells and shrinks when exposed to moisture.

Use silicone to seal the seams of garden beds just like you would seal it. First, press it deeply, thickly and evenly into the cracks. Then, while it’s still damp, poke your finger in a paper towel and gently smooth out – removing gaps, air bubbles, and excess. Pay special attention to the sealing of your corner supports! I also dabbed open knots, holes or tears on the inside of the bed.

Application of silicone to all panel seams with a caulking gun. For reference, I needed about a 10 ounce tube of silicone to seal each 4 x 8′ 3 board garden bed.

Squeezed in a good amount and then smoothed out with a paper towel/finger.

The final result. All sealed and waterproof!

5) Reduce contact between wood and soil

Of course, your garden beds will be full of soil – so there is some “wood-to-soil” contact! But beyond their seams, wooden garden beds are also quite prone to rot along the lower perimeter. There they essentially sit in constant moisture. Another clever way to make garden beds last longer is to avoid placing the wood directly on the ground.

Our raised beds are on a few inches of well-drained gravel. Since we have a nasty gopher problem, we also have hardware cloth and landscape fabric (water permeable) under our beds. However, that doesn’t mean you can’t open up the lower middle section of your beds to the home soil if you prefer! I’m just talking about the wood itself.

My pro gardening friend Steve installs all of his raised beds on a gravel border, similar to a French drain. To do this, he digs a small trench (about 6 inches wide and deep) and fills it with quick-drying ¾-inch leachate rock. Then the perimeter of the wooden garden bed frame sits on top.

Our raised beds are set on gravel, with hardware cloth in the middle to block gophers. However, you could leave the center of your raised bed open to the native soil below and just create a “tunnel” of gravel around the perimeter for the wood to rest on.

6) Shou Sugi Ban garden beds

Shou Sugi Ban is a Japanese wood preservation technique that involves burning or charring wood surfaces. The charring process essentially seals the wood, making the wood more resistant to water and insect damage. Shou Sugi Ban garden beds should last a few years longer (or longer) than untreated wood of the same species.

To char wooden garden beds Shou Sugi Ban style, most people use a blowtorch or propane lamp. We’ve never done this ourselves, but I’ve heard one downside is that it takes a lot of fuel and effort. Experts also say it’s important not to overburn it, as deep burns can actually make the wood more susceptible to rot and compromise structural integrity.

This article explains the process in more detail. This YouTuber also features his Shou Sugi Ban raised bed here – along with an update showing the inside of his bed 1.5 years after use.

Just as we chose to only seal the inside of our new raised beds, this person only applied the Shou Sugi Ban method to the inside and underside of their beds – the most vulnerable areas. Image via Reddit.

7) Promote good drainage

Good drainage is key to growing in raised beds. Plants prefer loose, moist, well-drained soil with plenty of air pockets to explore roots and beneficial microbes. They don’t like damp, heavy, compact soil – and neither does your wood! Heavy soil that retains too much moisture can increase the likelihood of wood rot. On the other hand, raised beds dry out faster than soil gardens. It can be difficult to achieve the perfect balance!

Fill raised beds with soil suitable for tubs or raised beds. This article describes how we make our own soil mix using soil, compost, and an “aeration” component. Aeration additives include perlite, pumice, sand, peat moss, coir, rice husk, or our favorite: ⅜-inch lava rock. It promotes the ideal mix of moisture retention and good drainage.

Also, never seal the bottom of your raised beds with impervious material such as cement. B. a plastic film. You want your beds to drain freely! I also do not recommend covering the wooden walls with landscape fabrics, even “permeable” and breathable fabrics. The fabric keeps extra moisture right on the wood.

Raised garden beds or those placed on hard surfaces (such as a patio, driveway, or deck) should have plenty of drainage holes in the bottom—just like pots. For example, we drill at least half a dozen ½” to ¾” holes in the bottom of our wooden wine barrel planters.

Our newest garden beds – all sealed, siliconized and filled with fluffy, rich, well-drained soil. These babies should last well over 20 years… hopefully 30+!

And this is how wooden raised beds last as long as possible!

All in all, raised beds are a fantastic way to grow food, flowers, herbs and more. I love their sleek look and for us the ability to stop gophers from getting inside. I hope you picked up a few new tips today to extend the life of your beautiful raised beds. If you found this information valuable, please share it by pinning or sharing this post. We wish you the best of luck building and preparing your beds – for years of bountiful harvests!

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Pressure treated pine is also commonly used to construct planters, but it has some disadvantages that natural woods do not have. Pressure-treated wood is treated with chemical preservatives to make it rot, insect, and weather resistant, but these aren’t ideal for planters that contain edible plants like vegetables or herbs. Pressure-treated wood also tends to shrink over time and does not take stain or paint well unless the wood has dried out. Natural, untreated pine can also be used to construct planters, but must be sealed to make it resistant to the elements, rot and fungal attack. Pine is also soft, making it prone to nicks, gouges, and other damage.

If you’re thinking about growing your own plants or vegetables but are short on space, a raised planter is just what you need. Perfect for teaching children how to grow their own food, helping them learn life skills and even encouraging them to eat vegetables, garden crates have become an incredibly popular item across the UK.

From preventing soil compaction and preventing erosion to providing better water retention and drainage, elevated planter boxes offer many gardening benefits to both experienced and novice gardeners. But let’s also not forget how stunning they can make your outdoor space look.

Choosing the right material for your planter box is a crucial decision in preventing unwanted weeds, preventing overheating or rusting and ultimately ensuring a suitable growing space. There are many options, but only one meets these requirements and that is wooden planter boxes.

So which type of wood is best for planters? Cedar and redwood are two of the most commonly available types of wood, and you can’t go wrong with either. Cedar wood is particularly popular due to its durable, lightweight and crack-resistant properties. Redwood, on the other hand, is naturally rot-resistant and has a longer lifespan, but can be a more expensive alternative.

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Advantages and disadvantages of the most common types of wood

To help you make an informed decision, we have compiled a list of the top four types of wood for planters. Other suitable options include Cypress, Teak, Accoya, and Yellow Balau.

Type of wood Pros Cons Cedar Durable (Janka rating of 900 lbf).

Resistant to harsh weather conditions and pests.

Easy.

Can last between 10 and 15 years.

Doesn’t crack.

Easy maintenance.

Does not need to be stained or sealed. May fade to a weathered gray over the years, which some find attractive. Redwood Durable (Janka rating of 3,190 lbf).

Immediately available.

Inherently rot-proof.

Are known not last up to 20 years.

Easy maintenance.

Not treated with chemicals. More expensive than other alternatives.

Requires sealing to prevent cracking. Pine Durable (Janka rating of 1,630 lbf)

Very diverse.

affordability.

Easy.

Resists shrinkage and swelling

Attractive grain options Pressure treated pine contains chemicals to preserve the wood.

Prone to scratches and dents Iroko Durable (Janka rating of 1,260 lbf)

Rot and insect resistant

Qualities of heat moderation

moisture resistant

Renowned aesthetics Hard to find

Higher cost

Higher maintenance requirements

Looking for a wooden plant box?

Are you ready to buy wooden raised beds? Check out our two best sellers below or browse our entire wooden planter collection. We also work with schools and local authorities across the UK to provide bespoke vegetable planters so please contact us to discuss your project!

Check out our wooden planters

This publication is part of the Community and School Gardens series.

David Berle and Robert Westerfield

Gardener of the University of Georgia

The choice of building materials for raised beds depends on local availability, the type of bed being built, and budget. When choosing materials, consider the overall environmental impact of the chosen material. In many situations, recycled wood is the best choice. Wood and masonry materials can also be used successfully under the right conditions.

materials

There is a wide range of materials to choose from for constructing raised beds. Some are more environmentally friendly than others. This publication focuses on materials that meet most organic food production standards.

Cedar wood is often used in the construction of raised beds. It offers a natural resistance to rot and insects. Eastern red cedar (Juniperus virginiana) is very rot resistant and will last for years even in contact with soil. However, the wood is very dense and can be difficult to work with. Because eastern red cedar is not grown commercially, it is difficult to find — especially in larger sizes — and usually very expensive. West Coast cedar (Thuja plicata) is available at many lumber stores and is much easier to work with, although it tends to split when using wood screws without pre-drilling. There are some environmental concerns about sustainable production practices and – since it’s grown on the west coast – the amount of fuel required to ship it to Georgia. The cost is often four to five times that of the Southern Yellow Pine, and there is some doubt about the cedar’s life expectancy when in direct contact with the soil.

Cypress (Taxodium distichum) is native to the Southeast and is more readily available in Georgia than cedar, although it is not commonly found at discount lumber stores. Its rot and insect resistance is controversial, especially when used in direct contact with soil, but is thought to last longer than regular pine. Ordering from a lumber store can be expensive, but when cypress is locally grown and milled, the cost is reasonable and makes a good alternative to cedar.

Native to the southeast, pine (Pinus sp.) is the most commonly available wood in Georgia. When used in construction, Southern Yellow Pine is one of the strongest, easiest to work woods and very inexpensive. Pine can be found in a variety of grades, with #1 being the best and least common. Regardless of the variety, pine has almost no resistance to rot or insects and has a very short lifespan when used in direct contact with soil. The exception to this is pine, which is used in older buildings. Forty to 50 year old pine is surprisingly strong, straight and dense compared to modern pine. Reclaimed wood from older barns and buildings offers an excellent alternative that is very “green” compared to most other materials.

Oak and other hardwoods (Quercus sp., Cary sp.) are difficult to find in large quantities or sizes and offer only slightly more rot and insect resistance than pine according to most research. The cost of most hardwoods is prohibitive, and hardwoods are notoriously difficult to work with when dry.

Composite materials are becoming increasingly popular for outdoor construction projects due to their long service life and relatively easy processing. Composite wood consists of wood or pulp fibers that are mixed with plastic resins and formed into shapes similar to dimensioned lumber. It comes in a few basic sizes, primarily for decking, and is very expensive – typically three to four times the price of traditional treated pine. The durability of composite wood in direct contact with soil has not been thoroughly tested, but studies of the effects of composite wood used for decking show that composite wood experiences many of the same forms of degradation as traditional wood, such as: B. Cracks, discoloration, mold and mildew and degradation in the light. Studies also show that composite wood has a higher environmental cost than cedar or pine.

Materials for masonry include cement blocks, brick, discarded concrete, and stone. Of these, cement blocks are the easiest and cheapest to use. It’s fairly easy to find used blocks for free or well below retail. Cement blocks can be stacked on top of each other to create raised raised beds; However, walls higher than two levels should be grouted or supported in some way to avoid collapse. Used brick is often widely available; However, stacking without mortar is nearly impossible.

Mortared walls are safer and more durable. Dry stacked walls are cheaper and easier to construct, but less durable. Used concrete from excavated driveways and sidewalks can often be found for free and, when in small pieces of even thickness, makes an excellent recycle material for raised bed walls. In some areas of Georgia, stone such as granite rubble is readily available. If the stone is angular, it may be able to be stacked to form walls. Otherwise, without mortar to hold it together, a stone wall is confined to a single level. (Note – Chemical additives found in most cement mixes are not permitted under USDA guidelines for organic certification.)

Raised bed kits are popular with ISPs and local garden centers. In some situations, these offer a quick and easy way to set up a raised bed. Most are made of either cheap plastic or western cedar and are expensive compared to do-it-yourself prices. Some kits only include the hardware while others include a complete package. The variety and quality of these kits varies widely and buyers should exercise caution when purchasing kits without full knowledge of the product.

Natural wood preservatives

Commercial wood preservatives have come under scrutiny in recent years, particularly creosote and some of the copper-based, pressure-treated products (e.g. green-stained wood used for decks). Because of the potential problems with creosote, used railroad ties and utility poles should not be used in beds used to grow food of any kind. Similar concerns have been raised in relation to pressure treated wood, although current formulations appear safe for food production. USDA organic certification guidelines do not allow any of the pressure-treated wood products to come into contact with plants grown for food. That leaves very few options for treating wood for raised beds. The two most commonly marketed products are linseed oil and tung oil. Neither treatment has been proven to increase the life of wood in contact with soil.

Linseed oil is an extract from linseed that can be used to protect a natural wood product from rot. It is important to realize that raw flaxseed oil is different from cooked flaxseed oil. Cooked linseed oil is a mixture of raw linseed oil and synthetic solvents that must not be approved for use in organic systems. Crude linseed oil is an inexpensive wood preservative; however, it is not as effective as creosote or other synthetic wood preservatives. Remember that linseed oil is a food source for mold and mold will grow on wood treated with linseed oil.

Tung oil comes from the seeds of the tung tree and has been used as a wood preservative. It is quite expensive and, like linseed oil, is often mixed with harmful solvents to make it easier to apply and soak into wood.

Status and revision history

Published February 27, 2013

Published with full review on August 31, 2016

Published with full review on September 30, 2019

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In urban areas, planter boxes and raised beds (or raised beds) are the best options for those who love gardening. So if you’re thinking of building a garden, the first thing you need to answer is, “What is the best wood for planters and raised beds?”

Before planting your herbs and veggies, be sure to use the best wood for your planter or raised bed. Using the wrong wood can lead to chemicals in your food!

Best wood for plant boxes and raised beds

It is imperative to use wood that is environmentally friendly, affordable and durable.

Spruce, pine, redwood, juniper, chestnut and cedar are the best and most popular woods for planters. They are rot-resistant, food-safe, readily available, and don’t pollute the soil in the long term.

However, before you buy any of these woods, you should also keep their disadvantages in mind.

Summary of the best wood for planters and raised beds

Type of wood Advantages Disadvantages Spruce – knot-free.

– Cheap.

– Very light and soft.

– Stay cool in hot temperatures.

– Dries quickly. – Susceptible to diseases.

– Not drought tolerant.

– Cannot stand the humidity.

– May be damaged by insects if improperly coated. Pine – Wide range of finish options.

– Strong and durable.

– Resistant to shrinkage and swelling.

– Very striking appearance. – Ordinary pine wood often has imperfections.

– Requires more maintenance. Redwood – Does not shrink or decay as it ages.

– Visually stunning.

– Resists natural wear and tear.

– Can withstand harsh climate conditions and survive harsh weather conditions.

– Resistant to extreme heat. – Soft and prone to dents.

– It is important to maintain and clean it regularly.

– Has become an endangered species due to high demand. Juniper – Very rot resistant.

– Tolerant to windy and rainy conditions.

– Efficiently handles a variety of soils.

– Prevents serious pest problems.

– Lasts longer. – Very close.

– Generally more expensive. Chestnut – Prevents fungal root diseases.

– Available in different shades.

– Rare and valuable.

– Softer hardwood.

– Significantly lighter than most other types of wood. – Regular maintenance required.

– The prices are relatively higher.

– Can be easily damaged by insects. Cedar – Resistant to insect infestation.

– Can last 15-20 years.

– Thrives very well in moist environments.

– Naturally beautiful.

– Works well with a light coat. – Turns gray with weathering over the years.

– More flammable.

If you’re just starting out, we recommend going for ‘cedar’. It is a naturally rot-resistant wood, works well with garden soil and looks good. It does not require much maintenance and is resistant to harsh weather conditions and insects.

Can I buy a plant box online?

Yes, you can buy a planter box online. Check out some options below:

Are you planning to redesign your terrace with a planter box? Get Jumbl Elevated Planter Box. It is made from 100% rot-proof cedar wood.

You can easily grow your favorite herbs, vegetables, fruits or flowers. It is also excellent for growing succulents such as snake plants.

Its elevated design is a great choice for gardeners with muscle strains or chronic back pain.

We love this planter box for so many reasons. It is made of naturally aged pine wood. Also, it has a dusty mottled brown coloring that suits almost all types of outdoor decor.

Use it for mini plant floral arrangements as the dimensions of this planter box are 17.3 x 3.9 x 3.9 inches.

It’s sturdy, beautiful and easy to assemble. This planter is made from real wood that will add a rustic charm to any setting.

The vintage look of this planter makes it an ideal choice for indoor and outdoor decoration.

If you want to build your own garden bed or garden box, this is one of the best raised bed kits on the market. As recommended by us, this set is made from 100% cedar wood, making it naturally rot resistant.

This kit is incredibly easy to assemble and is made of durable wood. So buy yours now!

frequently asked Questions

What is pressure treated wood?

Pressure treated wood undergoes a special process that adds chemicals to the wood to preserve the life of the wood.

It doesn’t make the wood stronger, but it does extend the life of the wood by making it less susceptible to rot and insect infestation.

Pressure treated timbers are generally safe to use but are not recommended for vegetable or orchards.

The chemical preservatives used in pressure-treated wood can be absorbed into the soil and then into your plants.

The preservatives that end up in your plants are usually small amounts that are non-toxic, but for this reason we do not recommend using pressure-treated wood on plants that you intend to consume.

Can we use teak for planters?

Teak is indeed a great choice for your planter boxes or raised beds. However, it is not often recommended by experts as it is expensive and not as readily available.

This wood has a high natural oil and silica content, which is good for the soil. In addition, teak is very resistant to rot.

The only downside to teak is that you need to apply a coat of sealer every year to protect its natural beauty and color.

How long does untreated wood last in a planter or raised bed?

Untreated wood lasts about 4 to 5 years outdoors, but this depends on many other factors such as: B. how well you take care of the wood, soil type, planter structure, climatic conditions, sun exposure, etc.

Some special steps such as sealing, painting, gluing or using water-repellent preservatives can even extend the lifespan, up to 15 to 20 years.

If the only focus is keeping your planter box from rotting, use rot-resistant wood like cedar or redwood.

You can also apply roofing cement inside the planter box to prevent water from damaging the wood.

What type of wood to avoid?

For garden beds and garden boxes, you should avoid recycled or older CCA-treated wood. This is because they are entirely second hand and no one knows how they have been treated throughout their lives.

Because of this, there is a high chance that older or second-hand treated wood will release harmful organic compounds that can damage your plants and become dangerous for the environment.