Leucojum, Snowflake Flowers, are closely related to Galanthus, The Snowdrop. Both have nodding white flowers with green markings, but Leucojum blooms much later than Galanthus, the blossoms have a different shape and the stems are considerably taller. Leucojum blossoms have umbels of pendant, bell-shaped white flowers with green tips and grass-like foliage. Leucojum, like Galanthus, were well known to the Greeks and other ancients. These plants contain a chemical known as galantamine which helps to restore or enhance memory. The Greeks, in particular, used both Leucojum and Galanthus. However, for reasons unknown, the plants fell out of favor and did not become popular garden plants until the 18th century. Leucojum tolerate moist soils better than most bulbs. They can be planted by streams, swamps or ponds as long as they are above the high water mark. They are also rodent-proof and deer-resistant. They are excellent naturalizers. Plant the bulbs 6" deep and 6" apart.