Are you looking for a way to protect your wooden planter box from the elements? Waterproofing your wood can help preserve its beauty and keep it in good condition.
With the right materials and techniques, waterproofing a wooden planter box is a straightforward process.
In this guide, we will show you how to waterproof a wooden planter box so that your planter box has maximum protection against water damage.
We’ll cover all the steps necessary, including what materials are needed, how to prepare the surface of the wood for waterproofing, and how to apply sealant or paint properly.
So if you want to know more about protecting your wooden planter boxes with waterproofing, read on!
Should Wood Planters Be Sealed?
Before you start waterproofing your wooden planter box, it’s important to decide if it should be sealed. Some woods are naturally water resistant and do not require additional sealant or paint for protection.
However, for most wood planters, sealing them will help preserve the quality of the wood and provide better protection against water damage.
For example, if you have a planter box made of cedar, it’s best to seal it with a good quality sealant. Cedar is naturally resistant to water and rot, but sealing it can help maintain its beauty for longer.
In any case, ensure you understand the type of wood your planter box is made from before you start waterproofing it.
7 Reasons Why It’s Important to Waterproof a Wooden Planter Box
1. Prevent Structural Damage:
Waterproofing a wooden planter box will help prevent it from becoming warped, cracked or distorted due to exposure to moisture. If the wood is not treated, it can absorb water and swell up, leading to structural damage over time.
2. Protect the Wood From Fading:
Sunlight and wetness can cause paint and stain to fade over time, so waterproofing your wooden planter box will help protect its appearance from fading.
When the wood is covered with a clear sealant, this protects the paint or stain underneath from fading due to sunlight and water exposure.
3. Make Cleanup Easier:
Waterproofing your wooden planter box will make it easier to clean up spills or messes that may occur in and around the planter box. A waterproof surface makes the mess less likely to seep into the wood and cause staining or discoloration.
4. Make Maintenance Easier:
The waterproof sealant layer on the wooden planter box will also help make maintenance easier. If dirt or debris accumulates on top of the wood, it’s easy to wipe away without having to worry about it soaking into the grain of the wood.
5. Maintain Aesthetics:
Wooden planter boxes look best when they are well-maintained and properly waterproofed. Waterproofing your wood can ensure that it looks great for years to come.
If the wood is not sealed, it can become dull and grey due to dirt and grime building up on the surface.
6. Keep Out Insects & Rodents:
Wood is a popular breeding ground for insects and rodents, but by taking the time to waterproof your wooden planter box you can keep these unwanted guests out of it and away from the plants inside.
If your planter box is well-protected and sealed, it’s less likely to become a home for pests.
7. Extend The Life of Your Planter Boxes:
Waterproofing a wooden planet box also helps extend its life span by minimizing water damage caused by wearing down of the wood’s finish over time.
It also helps preventing rot in harsh climates since moisture won’t be able to seep into the wood fibers too easily with adequate sealing materials.
Now that you know why waterproofing your wooden planter box is important, let’s move on to the how-to guide!
Materials Needed to Waterproof a Wooden Planter Box
You’ll need several materials to successfully waterproof your wooden planter box. These include:
- Paintbrush or roller
- Waterproofing sealant
- Painter’s tape (optional)
- Masking tape (optional)
How To Waterproof a Wooden Planter Box: Step-by-Step Guide
Step 1: Clean the Wood
The first step in preparing your wooden planter box for waterproofing is to clean it. Use a mild detergent or soap and warm water to scrub away any dirt or debris that has built up on the surface of the wood. Ensure you rinse off all the soap before moving on to the next step.
Step 2: Sand Away Rough Patches
Once your wooden planter box is completely dry, use a piece of fine-grit sandpaper to smooth out any rough patches or splinters that may be present.
This will help create a smoother surface for the waterproofing sealant to adhere to. If the wood is painted, you may also want to lightly sand the surface to help create a better bond between the paint and sealant.
Step 3: Apply Waterproofing Sealant
Once your wooden planter box is prepped, it’s time to apply the waterproofing sealant. Use a paintbrush or roller to evenly coat the wood with the sealant.
Cover all surfaces, including any crevices or areas where water may collect. If you’d like, you can also use painter’s or masking tape to create patterns or lines on the surface of the planter box for a unique look.
Step 4: Apply Waterproofing Membrane
After the first sealant layer has dried, it’s time to apply a waterproofing membrane. This extra layer of protection helps ensure your wooden planter box stays dry and retains its good looks for years to come.
Apply the membrane according to the manufacturer’s instructions and allow it to dry completely before moving on to the next step.
Step 5: Waterproofing the Interior
It’s also important to waterproof the interior of your planter box, as this will help protect any plants or soil inside. Apply a thin layer of sealant to the walls and bottom of the box using a brush or roller. If the box is large enough, you may want to use a garden sprayer to help evenly distribute the sealant.
Step 6: Allow the Planter Box to Fully Dry
After applying the sealant, allow the wooden planter box to dry for at least 24 hours. This will help ensure that the waterproofing sealant has had enough time to properly adhere to the wood and create a strong, waterproof barrier. Once the box has dried completely, it’s ready to use!
Step 7: Create Drainage Holes
If you plan to use your wooden planter box for plants, it’s important to create drainage holes in the bottom of the box. This will help keep the soil from becoming oversaturated and prevent root rot.
Use a drill and bit to create several small holes in the bottom of the box. Be sure to leave enough space between the holes so that water can escape.
Step 8: Seal the Surface
Once the drainage holes have been created, use a brush or roller to apply a sealant to the surface of your wooden planter box. This will help protect the wood from water damage and keep it looking good for years.
Allow the sealant to dry completely before using the planter box.
Step 9: Line the Interior of the Planter Box
If you’d like, you can also line the interior of your wooden planter box with a plastic or rubber liner. This will help keep the soil inside from becoming waterlogged and add an extra layer of protection against moisture damage. Make sure to secure the liner in place, so it won’t shift or move.
Step 10: Adding Plants or Soil
Now that you’ve successfully waterproofed your wooden planter box, it’s time to add plants or soil. Follow the manufacturer’s instructions for extra care and maintenance to keep your planter box in tip-top shape. With proper care, your planter box should last many years!
And that’s it! Now you know how to waterproof a wooden planter box. Remember that sealant must be reapplied every few years or so for the protection to remain effective. Happy gardening!
Additional Tips to Make Wooden Planter Box Sealant Last Longer:
1. Avoid placing the planter box in direct sunlight, which can cause the wood to warp and crack over time.
2. If you plan on moving your planter box around a lot, choose one with casters or wheels for easy maneuverability.
3. Use a high-quality sealant to properly waterproof your wooden planter box.
4. Line the interior of your planter box with a plastic or rubber liner to help keep the soil from becoming waterlogged.
5. Clean and inspect your wooden planter box regularly for signs of wear and tear, such as cracks, splitting wood, or peeling sealant.
6. If you notice any damage, make repairs immediately to help keep your planter box in good condition.
7. Reapply the sealant every few years to ensure the protection remains effective and your wooden planter box remains waterproof.
Frequently Asked Questions:
What can I put in the bottom of a wooden planter?
You can put various items in the bottom of a wooden planter, such as rocks or gravel to help with drainage, foam packing peanuts for insulation, burlap sacks for extra padding, or fabric liners to keep soil from over-saturating.
How do I prep a wooden planter box before sealing it?
Before sealing a wooden planter box, you should check for any visible signs of damage, such as cracks or splitting wood. If you find any, repair them before adding sealant. You should also sand the surface to create an even finish and vacuum away any dust particles. Finally, clean the planter box with warm soapy water and allow it to dry before adding sealant.
How often should I reapply sealant on my wooden planter box?
You should reapply the sealant every few years for the protection to remain effective. If your planter is exposed to direct sunlight, you may need to apply sealant more frequently. Clean and inspect your wooden planter box regularly for signs of wear and tear, such as cracks, splitting wood, or peeling sealant. If you notice any damage, make repairs immediately to help keep your planter box in good condition.
Waterproofing a wooden planter box is essential in extending its life and protecting it from water damage.
With the right materials and techniques, you can easily waterproof your planter box home with minimal effort. Make sure to reapply the sealant every few years so that the protection remains effective.
Additionally, take extra care of your wooden planter by avoiding direct sunlight, using casters or wheels if moving around often, and cleaning/inspecting regularly for signs of wear and tear.
Following these steps will help ensure that your beautiful wooden planter lasts many years!
We hope this guide on how to waterproof a wooden planter box was helpful to you.
Always refer to the manufacturer’s instructions for any extra care and maintenance needed to keep your planter box in tip-top shape.
Good luck and happy gardening!