About Zephyranthes tubispatha (L'Hér.) Herb.
Zephyranthes tubispatha (L'Hér.) Herb. produces flowers sporadically in late summer and autumn. Flowers grow singly on stems that reach 10 to 20 centimetres (4 to 8 inches) in height. The flowers are typically yellow, with copper coloring on their outer surfaces. Their tepals measure about 3 centimetres (1.2 inches) long, and are fused for a short distance at the base to form a tube. Like all species that were formerly classified in the genus Habranthus, the flowers of this species are not held upright on the stem, but instead sit at a slight angle. Leaves are not usually present when the plant flowers, and emerge later; they are narrowly linear in shape. In cultivation, Zephyranthes tubispatha tolerates light frost down to 0 °C (32 °F) when planted in a sheltered position that receives full sun, but it cannot survive being frozen. It produces seeds freely. A form with pinkish flowers is grown as var. rosea, though this form may actually be a hybrid. Z. tubispatha has been awarded the Royal Horticultural Society's Award of Garden Merit. The name Habranthus andersonii is commonly used for this species in horticultural references.