For maximum performance, start bulbs indoors about 6 weeks before the last frost date. Start in flats or individual pots. Plant about 1" deep in damp peat moss or vermiculite. Space 3". Water well and keep in a very warm area. Transplant outdoors when all danger of frost has passed and the soil has warmed. Outdoors, plant 1" deep and about 10" apart. Grow in full to partial shade. Water frequently and fertilize once a month. Caladiums are highly recommended for container gardening. Grows 12-18" tall. Caladiums are winter hardy only in zones 10 and 11. In other areas, they must be dug and stored indoors for the winter.