Someone told me to pay attention to what kind of fertilizer you use -- the 3 numbers mean something. The nitrogen (middle) makes great foliage. One of the others does root growth and the other does "fruit"
I have a raised 1 foot garden for the first time -- 3 tomatoes, 4 peppers and 4 cukes. All are doing well. I filled the 1 foot squares with dirt from Lowes. and added cow manure.