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 ...

CHICAGO — WGN’s “Plant Daddy” Tim Joyce is back to share some weekend gardening tips, including how to harvest tomato seeds, how hibiscus flowers get their colors and more. Got any questions for Tim?

Flowers. Tropical hibiscus (Hibiscus rosa-sinensis var. Cooperi) has variegated foliage in green, cream, and pink, as well as scarlet flowers that bloom on and off throughout the year. Unlike typical ...