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White Evening Primrose, Fragrant Evening Primrose
Scientific Name: Oenothera caespitosa Nutt.
Family: Onagraceae

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Recommended Temperature Zone: sunset: 1-3,7-14,18-21 USDA: 8-10 Frost Tolerance: In the coldest parts of the distribution areas, the foliage disappears in winter Heat Tolerance: Regular water in the hottest areas Sun Exposure: Full sun to light shade Origin: Western USA, northwestern Mexico, at medium to high elevation Growth Habits: Evergreen to deciduous perennial, up to 10 inches tall (25 cm) 2 feet in diameter (60 cm); Watering Needs: Little to moderate water when established Propagation: Seeds, divisions

Blooming Habits:
Fragrant white flowers, 3 inches in diameter (7.5 cm), opening in the evening, lasting only until the following morning, from mid spring to late summer.