Oenothera biennis



The shy yellow blooms of Oenothera biennis tend to open at dusk and close in the heat of the day, earning it the name "Evening Primrose". The foliage is is short the first year, and then tall flower stems emerge to bloom from June to September the second year.

Oenothera biennis Evening Primrose is a short-lived perennial (or biennial) that self-sows freely, making it great for naturalizing in the landscape. Its seeds are highly attractive to birds.

Oenothera biennis Evening Primrose is native to Eastern and Central US. It thrives in full sun to part shade and moist, well-draining soil, although it is very tolerate of drought and dry, hot soil.



  • Common Names: Evening Primrose
  • Zones: 4-9
  • Light Requirements: Full Sun to Light Shade
  • Soil Preference: Moist to dry, well-draining
  • Height at Maturity: 48 to 60 inches
  • Width at Maturity: 24 to 36 inches
  • Bloom Color: Yellow
  • Bloom Time: Summer to fall

Special Features

  • Attracts:
  • Tolerates:
  • Other Features: Native to North America.

Care and Growing Tips

Check out our blog for more gardening tips!

Shipping Info

 Spring 2023 shipping schedule:

Zones 9, 10: Starting Mon. March 20th
Zone 8: Starting Mon. March 27th
Zone 7: Starting Mon. April 3rd
Zone 6: Starting Mon. April 17th
Zone 5: Starting Mon. May 1st
Zones 2, 3, 4: Starting Mon. May 8th

If you'd like to receive your plants now, you can request it in the 'shipping requests' box on the order or email us. (Please note that we will not ship dormant plants, and we do not offer any sort of guarantee for plants overwintering.)

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We ship via UPS & USPS (the Post Office), and their ship rates are automatically generated through our site. We do not profit on shipping costs. We are working with these providers to get our customers the best rates possible.

All ship times are subject to change if extreme weather conditions are present here at the nursery or at the shipping destination.

Please note: Depending on the time of year, the foliage of the plants may be trimmed to fit into our shipping boxes. This could delay the flowering of the plant, but many perennials actually benefit from being cut back.

We are currently not able to ship to Puerto Rico, Hawaii, and outside of the US.