"When you're inspired by passion, nothing is too hard." - Valerie Herman, permaculturist
I am not knowledgeable about permaculture, but I do find it fascinating. While do some reading about it online today I discovered this video of Eli and Val's Garden near Jacksonville, FL.
Most of us can't embrace all of the practices Val and Eli have employed at their home, but as explained in the video they started with three small kale plants and kept adding on. What you see in the video is the culmination of 3 years work.
Caution: Before you decide to go whole hog with permaculture, please consider how your neighbors and township might react. In some areas of the country this type of urban agriculture is more accepted that in other areas.
I don't know for sure, but I suspect that Val and Eli have included their neighbors in their plans by being open about their vision for permaculture. Involving the local community and educating them about your plans can save you headaches and possible legal problems later on.