Q.: I have four pin oaks in my front lawn, which I planted 17 years ago. They range in diameter from 12 to 18 inches. Over the years, they have slowly developed increasingly severe iron chlorosis.

Q: We have an Avocado tree that is not doing well. It was planted last spring and is on a drip system, however it is looking “sad.” What can we do to save this tree? A: Avocado trees are a popular ...

I have an 8-year old dwarf rhododendron that's always looked sickly. I'm just now realizing why. I read a report explaining that rhododendrons prefer acidy soil. My plant has the exact pale, puny ...