QUESTION: I planted a white butterfly bush less than 5 feet from the foundation of my house to cover up a blank wall. As the bush grows, I regularly cut it back to stimulate more blooms. Can the roots ...

Yellow leaves can be an ambiguous symptom in plants. Like a fever in humans, yellowing leaves often indicate a health problem, but there are so many causes that the symptom doesn't indicate exactly ...

Q. We have two groups of 5-year-old Formosa azaleas. One group in a fairly sunny east bed was doing well, but this year the leaves began to yellow even though we fertilized, mulched and watered. The ...

I recently answered a question in my advice column on some azaleas with leaves turning color. A significant percentage of the leaves had turned orange, and the gardener was concerned that something ...