Rain lily (Zephyranthes reginae) zef-er-AN-theez REE-jin-ay Synonyms:  Cooperia reginae Genus:  Zephyranthes

These Mexican native bulbs actually offer demanding gardeners flowers on demand. They produce strappy foliage to 12 inches tall and clusters of buttery-yellow, starry, crocus-like blossoms two to three days after every rain in summer and early autumn. Or, if it doesn't rain, simply water and fertilize three days prior to your intended display, and the moisture will prompt the flowers to appear, hence the common name, rainflower. These bulbs are widely adaptable to diverse soil conditions, and may be grown in full sun to partial shade, but they prefer some shade.

Noteworthy Characteristics: 

They are perfect for rock gardens, border edges, or for naturalizing. Where not hardy, they can be grown indoors in a cool greenhouse, or placed outside in containers for summer display.

Care: 

Provide moist, well drained soil in full sun or partial shade. Avoid excess winter moisture. Adaptable to a wide range of soils.

Propagation: 

Sow seed when fresh; separate bulbs in spring.

Problems: 

Infrequent.

Overview

Height Less than 6 in. Spread Less than 6 in. Growth Habit Clumps Growth Pace Moderate Grower Light Full Sun to Part Shade Moisture Dry to Medium Maintenance Low Characteristics Native, Self Seeds, Showy Flowers Bloom Time Fall, Late Summer, Summer Flower Color Yellow Uses Beds and Borders, Container, Cut Flower, Ground Covers, Suitable as Annual Style Desert Garden, Formal Garden, Meadow Garden, Rock Garden Seasonal Interest Summer Interest Tolerance Deer Tolerant, Drought Tolerant Type Bulbs