How to Make Concrete Planters
Display your plants and flowers in unusual concrete planters that you design and make yourself. These one-of-a-kind containers are solid and strong enough to hold shrubs or small trees, but they also help show off your smaller plants. Use them as featured pieces in your backyard or arrange them near your kitchen for herbs.
Things You'll Need
- Plastic pipe, 1 inch in diameter
- Concrete mix
- Sand mix
- Oil (vegetable or canola)
- Tamper tool
- Thick plastic sheet
Cut the plywood into the size you want your pot to be. Nail all pieces together, drilling a one-inch hole in the center of the bottom to allow for drainage. Build another box that will be placed inside the larger box to form the inner wall. Drill an identical drainage hole and be certain to allow a space of two inches in between to form the walls.
Insert the plastic pipe into the hole of the larger form and spread the prepared concrete mix evenly at the bottom. Apply a coating of oil over the entire outer walls of the inner form. Place the form directly over the pipe and into the outer box.
Pour the concrete or sand mixture into the space completely around the walls, tamping carefully to prevent air pockets.
Wait at least 24 hours before removing the mold. Keep the planter damp by wrapping it in thick plastic. Leave it to cure for five to seven days before planting. Rinse it off to remove dust.
Use the forms to create other shapes and sizes. Try two wastebaskets as a starter idea. Fill the inner wastebasket with sand or rocks before placing it into the larger one.
- Add cement stain to the concrete mix before pouring into the mold.
- Clean thoroughly after each use.
- Always coat the walls of the inner mold with oil for easy release.
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