
trefle.io · Taken Jan 1, 1900 by EOL − USDA NRCS Wetland Science Institute. (public)
Onagraceae
Meadow evening primrose
Oenothera pilosella
Also known as Oenothera fruticosa var. hirsuta, Oenothera pratensis, Oenothera fruticosa f. hirsuta, white evening primrose
Flowering Plants · Native Plants · Evening Primrose · Oenothera · Yellow Flowers · Night Blooming · Moth Pollinator · Native Perennial · Meadow · Onagraceae · Wildflower · Cottage Garden
Meadow evening primrose produces cheerful yellow flowers that open in the evening, attracting night-flying moths and bees. It thrives in average garden soils with moderate moisture and partial to full sun, making it easy to grow in borders or naturalized meadow settings. Once established it is largely self-sufficient and may self-seed to form attractive colonies.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Water moderately, keeping soil evenly moist but not saturated · Every 7-10 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 5.8–7.2
- Temperature
- -25°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed, Division, Cutting
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 4 ft
- Spread
- 4 ft
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- Purple
- Foliage
- Green · Fine
Ecology & origin
Where it belongs and what it brings
- Native to
- Alabama, Arkansas, Central European Rus, Connecticut, Illinois, Indiana, Iowa, Kentucky, Louisiana, Maine, Masachusettes, Michigan, Mississippi, Missouri, New Hampshire, New York, Ohio, Oklahoma, Ontario, Pennsylvania
- Attracts
- Bees, Butterflies, Moths
Sources: trefle, usda
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