Gardening Calendar May 20, 2021May 31, 2021 by Amye King Weed beds regularly.Continue sowing annuals.Plant dahlias.Lift and heel spring bulbs.Remove rose suckers.Prune azaleas.Continue to plant vegetables. Support the Montgomery Botanical Gardens when you shop on Amazon and a portion of your purchase will go to improve the Gardens. 1. Go to smile.amazon.com2. Click the ‘Start Shopping’ button3. Shop as usual.