You may want to prune your azalea bushes yearly to keep them in good shape—but there's a short window of time when you can ...
Do not apply fertilizer after early June because summer droughts will cause stress for the plant. If your azaleas look fine, they do not need to be routinely fertilized during the growing season.
Provide azaleas with light applications of an acid-forming fertilizer each season with approximately a quarter-pound to a mature plant or three-quarters to 1½ pounds per 100 square feet.
Realize that specialty fertilizers exist for special plants like centipedegrass, roses, azaleas, camellias, annuals, perennials, trees and shrubs, lawns, etc. Using specialty fertilizers on your ...