The legendary Chilean blue crocus, whose “exquisite flowers” (Bryan) are not just any blue, but a deep, saturated, luminous blue of a purity and intensity rarely found in nature. The 1-1/2-inch, white-veined, trumpet-shaped, violet-scented blooms appear on 4-inch stems in spring. A spectacular subject for a cool greenhouse, or possibly outdoors in milder districts of the western U.S, it needs rich, gritty soil and a dryish rest in summer. Always in short supply and high demand.Montane/Mediterranean; W Central Chile. Zone 5.