Can P4 be used with mature trees or shrubs already planted in a landscape?
Yes, with a qualification. P4 can be applied by digging or auguring holes 8″-12″ deep around the center of a tree and shrub, applying P4 in each hole and back filling the holes. The amount of P4 to be used is directly related to the size (volume) of rootball. Consult your local nurseryman to determine the root mass of your existing trees and shrubs, then apply P4 dry at the rate of 1/4 cup per cubic foot of root mass. In situations where trees or shrubs are five years old or older (past adolescence) P4 probably won’t help significantly due to the fact that these plants already have extensive root systems. With water conservation becoming an increasingly important activity, P4 can go a long way toward preserving precious plants in drought stricken or water rationed areas. P4 will continue to provide years of benefit while providing a more favorable environment for your plants to grow and mature. If you should have any questions relating to Broadleaf P4, please give us a call on our nati
