This week, Don Kinzler answers questions about a struggling Autumn Blaze maple tree, tips for planting a new hibiscus, and why this year's tomatoes may taste bland. Reader Eileen D. asks gardening ...

We have an 8-year-old autumn blaze maple tree that has some black spots on its leaves. They just started to show up within the past 10 days. There also are some red-colored "bumps" attached to the top ...

Have you noticed the lemon-yellow trees on area streets and in yards? A common ailment strikes like clockwork on certain maple types. My wife, Mary, always one to look on the bright side, suggested ...