Yes, you can absolutely build your own urban planter boxes out of wood! It's a rewarding DIY project that adds greenery to patios, balconies, or small yards. For construction, rot-resistant woods like cedar, redwood, or pressure-treated lumber (rated for ground contact) are ideal for longevity. Use exterior-grade screws and ensure proper drainage by drilling holes in the bottom.
The treatment is crucial for protecting the wood. Avoid old-style creosote or pentachlorophenol, as these can harm plants. For edible plants, use a raw, natural wood like cedar or line the box with a heavy-duty plastic barrier (with drainage holes) if using treated wood. For non-edible displays, apply a non-toxic, water-repellent wood sealant or stain designed for outdoor garden use. Reapply the treatment every year or two to shield the wood from moisture and extend the life of your beautiful, handcrafted planter.