How to Waterproof the Inside of a Wood Planter Box

If you are an avid gardener or just ing out, you know that having a planter box can be a great way to grow your own plants. However, if you are using a wooden planter box, it is essential to waterproof it to prevent rotting and water damage. In this article, we will give you step-by-step instructions on how to waterproof the inside of a wood planter box.

Materials needed

Before we dive into the steps on how to waterproof your planter box, let's first discuss the materials you will need:

• A wooden planter box
• A waterproofing agent (such as a sealant, liner or paint)
• A sandpaper or wire brush to remove any rough surfaces
• A paintbrush or roller to apply the waterproofing agent
• Newspaper or drop cloth to protect the work area
• Gloves and protective eyewear

Steps to waterproof the inside of a wood planter box

Step 1: Remove any dirt or debris from the planter box

Before you waterproofing, make sure that the planter box is clean and free from any dirt or debris. Use a soft-bristled brush to remove any loose dirt, cobwebs, or debris.

Step 2: Sand or wire brush the inside of the planter box

Use a sandpaper or wire brush to remove any rough surfaces or splinters inside the planter box. This will help the waterproofing agent adhere better to the surface.

Step 3: Apply the waterproofing agent

There are several ways you can waterproof your planter box. You can use a sealant, liner or paint. Read on to learn more about each method:

Sealant:

A sealant is a clear liquid that penetrates the wood and seals it from moisture. It's easy to apply, but you may need to reapply it every few years. Follow these steps to apply a sealant:

1. Shake the container well before opening it.
2. Use a paintbrush or roller to apply the sealant to the inside of the planter box.
3. Make sure to cover all areas evenly.
4. Allow the sealant to dry completely before adding soil or plants.

Liner:

A liner is a plastic or rubber sheet that is placed inside the planter box to prevent water from seeping through. This is a great option if you want to avoid using chemicals or if your planter box has cracks or leaks. Follow these steps to install a liner:

1. Cut the liner to fit the size of the planter box.
2. Place the liner inside the planter box.
3. Press the liner against the sides and bottom of the planter box.
4. Trim any excess liner around the edges of the planter box with scissors.

Paint:

Painting your planter box not only waterproofs it but also adds color and personality to your garden. Follow these steps to paint your planter box:

1. Choose a waterproof paint that is suitable for wood surfaces.
2. Cover the work area with newspaper or a drop cloth.
3. Apply the paint to the inside of the planter box using a paintbrush or roller.
4. Allow the paint to dry completely before adding soil or plants.

Step 4: Let it dry

No matter which waterproofing method you choose, make sure to let it dry completely before adding soil or plants.

Step 5: Maintain your planter box

To ensure that your planter box lasts as long as possible, it's important to maintain it regularly. Here are some tips to help you:

• Water your plants regularly but avoid overwatering.
• Remove any dead or dying plants from the planter box promptly.
• Clean the inside of the planter box periodically to remove any dirt or debris.
• If the waterproofing agent s to wear off, reapply it as needed.

FAQs

Q1: Can I use regular paint to waterproof my planter box?

A: Regular paint is not recommended for waterproofing wood planter boxes. Use a waterproof paint that is suitable for wood surfaces.

Q2: How often should I reapply the waterproofing agent?

A: The frequency of reapplication depends on the type of waterproofing agent used and the weather conditions in your area. Generally, it's recommended to reapply the waterproofing agent every few years.

Q3: Can I use a liner and sealant together?

A: Yes, you can use a liner and sealant together for extra protection against water damage.

Q4: What is the best type of wood for a planter box?

A: Cedar, redwood and teak are some of the best types of wood for planter boxes as they are naturally resistant to rot and decay.

Q5: Can I use a pressure-treated wood for my planter box?

A: Pressure-treated wood contains chemicals that can be harmful to plants and soil. It's best to avoid using pressure-treated wood for planter boxes if you plan to grow edible plants. Use untreated wood instead.

In waterproofing the inside of a wood planter box is essential to prevent water damage and rotting. Whether you choose to use a sealant, liner or paint, make sure to follow the steps carefully and maintain your planter box regularly. With these tips, you can enjoy a beautiful and thriving garden in your wooden planter box for years to come.