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Oenothera speciosa /Evening Primrose

Oenothera speciosa  / Oenothera speciosa
Close-up image of the popular evening primrose flowers
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Close-up image of the popular evening primrose flowers

Flower color can range from relatively dark pink to nearly white as seen in this clump of evening primrose

A natural stand of flowers photographed on a highway right-of-way

A large colony of this self-seeding annual

Volunteer flowers

A colony with relatively dark pink flowers

Early spring flowers

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Scientific Name: Oenothera speciosa
Common Name: Evening Primrose
Plant Type:
Leaf Type: Broadleaf
Hardiness Zone: 5, 6, 7, 8, 9 Determine Your Zone
Height: 1-2 feet
Spread: 1-2 feet
Bloom time: Spring
Flower color: White, Pink
Light Exposure: Sun, Part Sun
Drainage: Well drained, Moist,
Rate of Growth: Fast
Maintenance Level: Low
Susceptible to insects
and diseases:
Landscape Categories: Plants for Xeriscapes
Comments: This primorse produces white flowers that turn rosy pink from the outer edge of the petals inwards as they age. May produce white or near white flowers that that never turn a darker color. They spread by sending our roots beyond the established clump and are almost invasive because they also self-seed. They are effective in rock gardens, wildflower plantings, and naturalistic borders and along the edges of roads and walks. They are commonly seen along highways throughout their region of adaptability.