Gardening legend Elizabeth Lawrence grew and treasured this hardiest of the fall-blooming snowflakes, pronouncing it the “most adorable bulb I know.” The flowers are minute crystalline bells, one or two to a 6-inch scape, hung on hairlike pedicels. The leaves emerge shortly after the flowers. It relishes sun and well-drained soil, and is thus one of the best bulbs for rock gardens. The taxonomists have decided that all the fall-blooming leucojums should go by the generic name Acis, but we need a little time to warm to that concept. Mediterranean; W Mediterranean. Zone 5.