I have 6 azaleas, 4 red and 2 white, that are 3 years old. They are full of red and white flower buds, but the buds won't open. This happened also last year. They get full sun starting at 10:00 AM (north-west side of the house) and I gave them a slow release acid fertilizer a few weeks ago. I also added some commercial humus and manure. Any suggestions on why this is happening? Thanks. |