Most plantings are mature, established plantings or new plantings.
Because young plants are small and growing actively, they require more fertilizer than mature, established plantings. New Plantings Don't fertilize newly transplanted trees and shrubs for at least 4 weeks after planting. By this time, the root system is growing and able to absorb nutrients to stimulate new growth and encourage rapid development. Fertilize young plants at several regular intervals during the first, second, and third growing seasons. After the third growing season, reduce the fertility program to one annual application.