Transferring Norfolk pine trees and what fertilizer to use for it. Growing edible perennials. Capturing rain water. Why soft water is not good for house plants. Is water collected from the roof okay to use on edible plants? Is it too soon to prune trees? Replacing soil for tomato plants with disease problems. Growing garlic. Repairing damage done by animals. The flower show opens today at the Arboretum. Caring for potted ferns. Composting soil on a long time garden space. Preventing fungus gnats. Doing a soil test.Learn more from horticulturalist Mary Meyer. ext.umn.edu.