How and when do I prune azaleas to keep them a set size but still provide a...
Evergreen azaleas produce flower buds during the summer months after their spring flowers fall from the shrub. Consequently, the ideal time to prune azaleas in order to ensure bloom the following spring is to prune them immediately after the flowers fall from the plant. Keep in mind that azaleas are acid loving plants and it is best to make sure the soil around the root zone has a pH of 4.5-5.5. If the plant is not looking healthy or if it is not flowering profusely, you may want to have the soil tested and, if necessary, amend the pH to accommodate the plant's needs. Also, select a fertilizer that is labelled for azaleas.