Published in 2013, “Eating Free Food” has yield data on over 30 trees and dozens of food producing plants.
By utilizing this yield data, readers of “Eating Free Food” are able to design a food security program around their house. Each tree and plant has an associated percentage rating which illustrates just how many of these trees or plants it takes to produce a complete program.
As an example, a Fig tree has a 10% rating. To make a complete food security program, all it takes is planting 10 Fig trees or combining the Fig tree with other plants.
You may have 5 Fig trees (50%) and other trees or plants to make up the other half of your diet. These may include other fruit bearing trees or a variety of vegetables and other edibles.