Q: I just bought a house with overgrown azaleas. They are full on top but not dense underneath. How and when do I prune?
A: Sometime in February or early March would be the absolute best. Of course, pruning at that time means you won’t get any flowers that season but you’ll get very strong regrowth of greenery on the lower part of the plant. This can be shaped into a nice looking, but smaller, azaleas. If you prune now in the heat of summer, you won’t get much regrowth and you won’t get flowers either.