What to do in our lawns and gardens now that September is here. What to do with plants as we hit a cold snap. When to move ferns. Peach tree problems. Lemon tree growing basics. Becoming a master gardener. Now is the time to plant grass seed. Black spots on peonies. The best time to plant and move hydrangeas. How to keep lilacs alive. The best time for fall fertilizing. Getting rid of a Hosta virus. Dividing and replanting Hostas. Learn more from horticulturalist Mary Meyer at extension.umn.edu.\