The azaleas are on the south side of the house, and they get plenty of morning sun. I had the soil pH checked last year, and it was about 5.5. This could be because it is so close to the foundation, and it is seeping into the soil. I added azalea fertilizer a couple times last year. They get water about twice a week fall through spring and three times a week in summer. I have always mulched them with leaves (mostly oak), and last week I applied my first-ever batch of home-made compost. They are pretty bushy, and I wonder if thinning them would help. I pruned them last June. I always heard August is the cutoff point, but maybe it was too late.
I believe these azaleas are about 30 years old. My family moved into this house in 1985, and they were neglected until I took up gardening in 1995. We've never had much luck getting them to bloom, but they look so much healthier than before, and I am quite fond of them.
Thanks for any help!

