Plant bulbs in the fall, point up, 4 inches (10 cm) deep and about 4 inches (10 cm) apart. Choose full sun or light partial shade, then water deeply after planting. In spring, keep the soil lightly moist when rain is insufficient, but avoid waterlogging. A thin layer of mature compost supports growth; avoid nitrogen-rich fertilizers. Group the four bulbs for a more visible effect. When planting in containers, use a deep pot with adequate drainage holes and protect it from repeated freeze-thaw cycles. After flowering, remove spent flower stalks if you don't want seed formation, but let all leaves turn yellow completely. They replenish the reserves necessary for the next bloom. Reduce watering during summer dormancy and mark the location to avoid disturbing the bulbs. Divide a crowded clump after the foliage has died back, then quickly replant the firm bulbils. Ornamental bulbs are not for consumption and can irritate the skin; keep them out of reach of children and animals and wear gloves if necessary.