Leucojum is Spring's high-volume replay of Winter's snowdrops: Same white-and-green flowers, but in groups of up to eight per stem, not just two. Same dangle, but from stems that can be eighteen inches tall, not four to six. Same high resistance to critters above and below ground. Same ability to thrive for many years without care.
This cultivar is 'Gravetye Giant', and it raises the "volume" still higher—the flowers are a bit larger and the flower stems can be a full foot higher—for a reprise of snowdrops that can be as high as your knees, not as short as your ankles.