Zephyranthes drummondii, commonly known as Evening rain lily, evening star rain lily, giant rain lily, hill country rain lily, prairie lily, or rain lily, is a perennial species of flowering plant in the amaryllis family.[1] It is found from northwest Florida to northeast Mexico.
It is a perennial herb that grows tall.[2] The leaf blades are glaucous-green, and are up to wide. The spathe is 3–5 cm long. The flowers are erect; the funnelform perianth is long and is white, sometimes "flushed pink abaxially".[3] The perianth tube is white to green, and is long. The tepals are rarely reflexed. The stamens are fasciculate, and are distinctly subequal. The filaments are subulate, and are 0.1 to 0.2 cm long. The anthers are long.
It flowers from March to August.
It is found in Florida, Texas, Louisiana and northeast Mexico from elevations of 0 to 900 meters from sea level. It grows in sandy or rocky, usually calcareous soils.