Frozen ground and a winter-white landscape as far as the eye can see can stir a hankering for some greenery and blooms in the house. Jenny Cassidy, a customer service employee at Cascade Garden Center in Bend, offered a few suggestions for excellent houseplants. Most of the suggested plants like moderate to low light and can handle an irregular watering schedule. Cassidy cautioned that plants that like full sun shouldn't be placed next to windows because of cold winter drafts. Instead, place them in the interior of bright rooms.