Fertilizing Azaleas: Timing and Tips for Healthy Growth

The best time to fertilize azaleas is right after the flowers fade. However, the amount depends on the plant's age and vigor. Established shrubs need little—just a tablespoon of 10-10-10 per foot of height per year. Young plants benefit from four light feedings at that same rate during the growing season. You can also use a specialty "azalea-camellia" fertilizer or an organic option like Milorganite. Always follow the product label for application rates.