I do believe there's a book called Vertical Gardening that might have some tips and might recommend what plants can co-exist in a shared pot. I know I saw a segment on a tv program called "Growing a Greener World". You might check that out as well.
Only when the last tree has died and the last river has been poisoned and the last fish has been caught will we realize that we can't eat money. Cree proverb
