design extendable wall mounted tree holder -- 2

design extendable wall mounted tree holder for trees to hold them as they grow, and can be extended more as trees grow and can be extended as blocks. the goal of this design is to make a car parking area with a cover of trees. this design must be mounted from one side only and can hold the trees and stand the wind, also must be mounted as blocks as needed not one piece.
more details can be sent to you.