Since Crepe Myrtles are classified as acid loving plants, Ferti-Lome Azalea, Camellia, Rhododendron Food 9-15-13 can be used in those trees. It helps to provide the needed soil acidity for your plants to reach their full potential.
Yes, Ferti-Lome Azalea, Camellia, Rhododendron Food 9-15-13 can be used for magnolia trees and other acid loving plants. You will apply at the rate of 1/4 cup for each foot of height.