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Oenothera biennis

Also called Evening Star, King's cure-all


Oenothera biennis - Evening Primrose - Karan A. Rawlins, University of Georgia, Bugwood.org

More About Oenothera biennis

  • Fragrant, yellow, saucer-shaped flowers appear on tall stalks
  • Blooms open at dusk and closing by noon the following day
  • Lance-shaped, slightly serrated, mid-green leaves
  • Biennial, self-seeding perennial
  • Flowers form on second year's growth
  • Bloom Time: June to September
  • Flower Size: 2.5 cm

Interesting Notes:

Native to Ontario

Its roots during the first year of growth are edible and the seeds are important as bird feed. Seeds can remain viable in the soil for up to 70 years.

Zone:

4

Height:

100-150 cm

Spread:

30-45 cm

Colour:

Yellow
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Evening Primrose Growing and Maintenance Tips

Thrives in full sun with average moisture in a somewhat sandy soil. Can be found along roadsides, in abandoned fields, slopes, vacant lots and ditches. 


Oenothera biennis Characteristics

Full Sun
Full Sun
Attracts Butterflies
Attracts Butterflies
Native to Ontario
Native to Ontario
Fragrant
Fragrant
Long Blooming
Long Blooming

Soil Moisture

Well-drained
Moist to Average

Growth Rate

Medium

Flowering Time

Lt. Spr-Sum
Lt. Sum-Fall
Summer

Habit

Clumping
Upright

Foliage Color

Green

Landscape uses

Roadside planting
Naturalizing