
trefle.io · Taken Jun 29, 2019 by Dieter Wagner (cc-by-sa)
Onagraceae
Large-flower evening-primrose
Oenothera glazioviana
Also known as Yellow evening primrose, Common evening primrose, Evening star, Oenothera scintillans
Native Plants · Evening Bloomer · Cottage Garden · Wildlife Garden · Self-Seeding · Pollinator · Yellow Flowers · Meadow · Night Blooming · Biennial · Moths
Large-flower Evening Primrose is a vigorous biennial or short-lived perennial that produces spectacular large, bright yellow flowers that open in the evening, attracting moths and other pollinators. It thrives in full sun to partial shade with average, well-drained soil and requires very little care once established. It self-seeds freely, making it an easy naturalizer for cottage gardens, meadows, or wildlife borders.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water deeply but infrequently; allow the top inch of soil to dry between waterings · Every 7-10 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 6.5–7
- Temperature
- -20°F to 90°F
- Cycle
- Perennial
- Propagation
- Seed, Division
Hardiness
USDA 4a-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 3 ft
- Spread
- 2 ft
- Spacing
- 24 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Afghanistan, Alabama, Albania, Angola, Argentina Northeast, Arkansas, Austria, Azores, Belgium, Brazil South, Brazil Southeast, British Columbia, Bulgaria, California, Canary Is., Cape Provinces, Chile Central, Chile South, China North-Central, China South-Central
- Attracts
- Moths, Bees, Butterflies
Sources: trefle, usda
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