Bloomipedia
Pale evening primrose (Oenothera pallida)
Photo: harrii via iNaturalist · CC BY 4.0 · resized

Flower profile

Pale evening primrose

Oenothera pallida

Native to Utah

Pale evening primrose is a wildflower that USDA PLANTS lists as native in the lower 48 states. In Utah it's most often seen in bloom in April–September.

11states
1,722UT sightings*
2,997U.S. sightings*

*iNaturalist research-grade observations, as of October 17, 2026.

On our lists for: Utah

Quick look

Oenothera pallida, the pale evening-primrose, is a species of flowering plant in the family Onagraceae. It is native to British Columbia, the western United States, and northern Mexico. Flowers start out white and fade to pink.

  • It belongs to the Onagraceae family. iNaturalist
  • USDA PLANTS describes it as an herb (forb) with a biennial, perennial life cycle. USDA PLANTS
  • USDA PLANTS lists it as native in the lower 48 states and records it in 11 states. USDA PLANTS
  • NatureServe lists it as native to Utah. NatureServe
  • In Utah, most iNaturalist sightings of it in flower come in April–September. iNaturalist
  • USDA PLANTS lists its flower color as white. USDA PLANTS
  • USDA PLANTS gives its bloom period as late spring. USDA PLANTS
  • USDA PLANTS lists a mature height of about 2 ft. USDA PLANTS
  • iNaturalist has 1,722 research-grade sightings of it in Utah, ranking #20 among the 109 flowers on our Utah list. iNaturalist

Pale evening primrose gift ideas

Handmade pale evening primrose gifts from independent makers.

When does it bloom?

In Utah, most flowering sightings come in April–September.

Flowering records by month in Utah (iNaturalist research-grade observations marked “Flowering”) (345 records)

Conservation status

Federal (U.S. ESA)
Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
NatureServe global
G5 Secure worldwide. NatureServe
Utah
No list Utah has no state law listing endangered or threatened plants, so we show NatureServe's Utah ranks instead. NatureServe: SNR, not yet ranked in Utah.
Rare elsewhere
Other states where NatureServe ranks it rare or missing: MT (S1). (S1 critically imperiled, S2 imperiled, SH possibly extirpated, SX presumed extirpated.)

Checked October 17, 2026. Rankings and lists can change, so follow the links for the latest.

Can you eat it?

For peopleNot well documented

None of the sources we checked (NC State Extension (no page for this plant), USDA PLANTS) say whether it's edible or poisonous for people.

For petsNot well documented

It isn't on the ASPCA plant list.

🌿 Never eat a wild plant unless you're certain of its ID; this isn't medical advice. Worried about a person? Call Poison Control at 1-800-222-1222. Worried about a pet? Call your vet.

Where does it grow?

USDA PLANTS records pale evening primrose in 11 states.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Texas, Utah, Washington, Wyoming.

Utah counties with USDA records: Beaver, Box Elder, Cache, Carbon, Daggett, Davis, Duchesne, Emery, Garfield, Grand, Iron, Juab, Kane, Millard, Morgan, Piute, Rich, Salt Lake, San Juan, Sanpete, Sevier, Summit, Tooele, Uintah, Utah, Wasatch, Washington, Wayne, Weber.

More Utah flowers

Sources