Galanthus elwesii 'Snow Fox' is an early-blooming cultivar with dark green markings on the inner petals and lime green markings on the outer ones. Snowdrops are a harbinger of spring that bloom in late winter, often breaking through the snow. Their pendulous pure white flowers often have green markings, the small subtleties of which along with the variation in petal shapes beguile many gardeners who, having fallen down the rabbit hole, are known as "galanthophiles". Beware! You could be next.