Plant these bulbs in the autumn in loose soil that drains well. Choose a location that suits their light requirements, where the young shoots can receive light in the spring. Arrange the bulbs in small groups rather than in a line that is too tight, then respect the appropriate depth for their size. Water after planting if the soil is dry to promote contact with the roots. Keep a discreet marker to locate the groups during their dormant period. In an already planted bed, work carefully among the roots of perennials and avoid cutting them unnecessarily. In spring, allow the flowers and foliage to develop without covering them with too thick a mulch. Water as needed during a dry period, especially if the planting is recent or in a container. After flowering, keep all the leaves that are still green to allow the bulbs to replenish their reserves. Wait for them to turn yellow naturally before removing them. If the groups become too crowded, take advantage of the dormant period to carefully redistribute them, keeping the healthy bulbs. In pots, provide winter protection adapted to local conditions: the roots are more exposed to temperature variations than in the ground.