Remove ice that forms around automatic ventilators; keep snow away from exterior portions of heater or vents that extend through the greenhouse wall. Go easy on watering of plants, especially on dark stormy days.
Start seeds of African-violets, beets for late winter harvest, begonias, browallia, calendula, carrots for spring, felicia, gloxinia, gypsophila, impatiens, kalanchoe, lobelia, nierembergia, petunia, salpiglossis, schi-zanthus, snapdragon, sweet-alyssum, sweet-pea, tomatoes for spring, trachymene.
Start cuttings of African-violet, ageratum, beloperone, browallia, campanula, carnation, clerodendrum, crassula, crossandra, gardenia, geranium.
Pot begonia, caladium, calla-lily, and gloxinia tubers; amaryllis bulbs.
Start bringing in potted tulips, daffodils, and hyacinths to force.