square foot gardening - Knowledgebase Question

El Cajon, Ca
Question by aslatten
May 20, 2010
I just bought some pre-made structures but I'm worried they are too shallow. They are only 4

Answer from NGA
May 20, 2010


I agree, a 4" depth of soil is too shallow for most plants; doubling up will give you 8" of soil but even that is minimal. How about tripling them up? With 12" of soil you can grow just about any vegetable or perennial plant. If gophers or moles are a problem, lining the bottom with hardware cloth, attaching it to the inside of the frame, up 2-3 inches on the sides should keep those pesky critters from digging through the roots of your plants. Best wishes with your new garden!

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