Garden writer Susan Mulvihill shares ways to enjoy gardening indoors during the winter months. This includes growing houseplants, propagating houseplants, checking on geraniums (Pelargoniums) and canna lilies that you’re overwintering, perusing seed catalogs, growing Amaryllis bulbs (Hippeastrum), and growing microgreens. From Susan’s in the Garden, SusansintheGarden.com.