Joanne Brichetto

Right now, these native “flowers” are blooming in Nashville—at least, until they melt, which is typically right after they form. Frost flowers are winter ephemerals. They happen when air temperature drops below freezing and warm groundwater rises to extrude itself through the conduit of a real flower stem, especially if that stem is a white crownbeard (Verbesina virginica). “Ice segregation” is the process at work. Water and vapor freeze on contact with air, and waves from within push older crystals forward and out. Read More