The Book of Bulbs

All the Zephyranthes mentioned in the chapters regarding hardy and half-hardy bulbs can be grown in the greenhouse, and there are also a few which ought to have a little additional heat, such as that of a stove. Citrina, yellow, about six inches high, and blooming in August, is one. Others are concolor, sulphur-yellow and blooming in April on stems a foot high; pumila, also known as Habranthus pumilus, blooming about September, and having rose coloured flowers; robusta (syn. Habranthus robustus), about ten inches high and blooming in June; sessilis, white and red, with its flowers in April; striata is a striped variety of this; tubispatha likes stove heat. They grow best in turfy loam, with the addition of some decayed manure or peat and sand.