Cement for gardening design

You can have a small square foot garden on a balcony, a bigger one on a rooftop. Check the weight considerations for your rooftop, and it might be wise to check the local by-laws.

A square foot unit measuring 16 sq ft and 12 inches deep will weigh somewhere around 300 kg, depending on the soil, the water content, etc.

You can break up a unit any way you like to fit the space available, right down to single one-foot squares, in boxes or baskets or whatever containers you can find. It then merges with container gardening.

If you use beds, say two 2x4ft beds with wooden sides, you can just stand them on the cement. If the soil is rich and 12" deep your plants will thrive, and the beds won't leak unless there's a real storm. It might stain the cement underneath, and if that bothers you, try putting them in big wooden trays covered with two thicknesses of heavy-duty plastic.

Gardening