Western Evening Primrose (Calylophus hartwegii)
Description: Somewhat upright and bushy plant with narrow leaves and soft yellow cup flowers that open in the evening and close the next afternoon shortly before new flowers open. This plant prefers fast draining soil and loves reflected heat making it an excellent choice for a rock garden or rocky slope. Deadheading and giving it some summer water will prolong the flowers. Cut back to 6-8 in the autumn to reshape.
USDA Symbol: CAHA14
Size Class: 0-1 ft.
Bloom Color: Yellow
Bloom Time: Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
Water Use: Low
Light Requirements: Part Shade
Soil Moisture: Dry
Bloom Notes: Native Habitat: Prairie, Plains, Meadows, Pastures, Savannahs
Missing Images: Plant, Leaf, Close-Up, Fruit-Seed
Data Completeness: Complete