Sprekelia formosissima has bold scarlet flowers with gracefully arching petals that resemble an amaryllis crossed with shiny ribbon. The five inch wide blooms occur in spring (often reblooming in fall) atop strap-like, green foliage and look best when crowded in a clump in a protected spot or when grown in pots. Native to Mexico, Aztec Lilies love heat. They prefer alkaline soil and will overwinter best when kept dry. Photo: Wikipedia.
Americas - North America
Mountainous reqions in Mexico, dry, calciferous rock scree.