 | Fertilome Azalea Evergreen Food Plus 9-15-13. Balanced plant food plus vital trace elements creates acid growing condition for Azaleas, Camellias, and Gardenias to thrive and grow Apply at the rate of 1/4 cup for each foot of height Feed existing plants in very early spring, again after blooming and again in the fall Do not fertilize Azaleas until they have finished blooming... - Fertilome Azalea Evergreen Food Plus 9-15-13. |