Lisa Johnson, Horticulture Educator from Dane County Extension, discusses the upcoming Green Thumb Vegetable Gardening series, troubleshoots growing tomato plants from seed, cautions against overusing salt for deicing, and advices pruning trees and shrubs when they are dormant. The Green Thumb Vegetable Gardening series will include 11 sessions from various Extension educators, and interested parties can register for all of them or only a select few.