The professionals at our local landscape supply company advised that this was the best and easiest way to attach the blocks together. While you could opt to secure your concrete block greenhouse foundation with traditional mortar, we chose to use a concrete construction adhesive or glue instead. For example, our greenhouse has an approximately 6×8’ perimeter base, and we wanted to build up the greenhouse foundation to be a foot tall – or three rows of 4” tall blocks high. Using the length and height dimensions of your blocks, do the math to see how many you will need for the given size greenhouse and desired height. We sourced our concrete blocks (called Morro Stone) from a local landscape supply company – Air Vol Block in San Luis Obispo, CA. SUPPLIES NEEDED TO BUILD A CONCRETE BLOCK GREENHOUSE FOUNDATION Keep reading to see how we prepared and built a simple concrete block greenhouse foundation. By installing our greenhouse on top of the block wall, we gained over a foot of height and headroom inside! I liked the look, durability, and also the fact that we could build it up high. We chose to build a concrete block wall foundation for our 6×8’ hobby greenhouse kit. The greenhouse foundation also provides a surface to anchor and secure the greenhouse to, which is essential to prevent damage during harsh wind and weather.Īs we explored in our “Hobby Greenhouse 101” guide, a greenhouse foundation can be created from wood, concrete, bricks, blocks, or other similar durable building materials. When it comes to installing a greenhouse, one very important consideration is creating a level and sturdy foundation for the greenhouse to sit on. Are you planning to add a greenhouse to your property? If so, congratulations on that awesome decision! We have had our hobby greenhouse for about 4 years now, and our only regret is that we didn’t get a larger one.

Blocks greenhouse