I have about 60 square metres in the front yard and 120 square metres in the back yard, but much of the back is in shade. My plan is to increase the growing space by having undulating land. I want to create piles of mulch and soil and then plant into those, increasing the surface area of my plot by 20-30%. I also plan to grow a large variety of small trees and to just keep them well pruned so that light can get through to other plants. My parents have an apple, lemon, grapefruit growing in a tight space between the house and the fence in a very small plot, and they are growing wonderfully.