Tall evening primrose
Oenothera elata Kunth
- light
- Full sun
- water
- —
- tall
- 1.3 m
- wide
- —
Onagraceae
Also called Hooker's evening primrose, Hooker's Evening-Primrose, Hooker's eveningprimrose, Western eveningprimrose
Formerly Onagra elata
When it flowers
Not known yet in the tropics: too few flowering observations to read a season from.
Read from iNaturalist photographs of it in flower. A month counts at 50% of the best month's flowering share (smoothed over three months) and 10% of its flowering count, from at least 100 flowering observations in the band.
If a child, a pet or anyone may have eaten a plant, contact a doctor or vet straight away, or call the National Poisons Information Centre (AIIMS, New Delhi) on 1800 116 117, free and open 24 hours.
Something wrong with it?About it
- Grows as
- Biennial or perennialKew's checklist, not yet checked
- Climate
- SubtropicalKew's checklist, not yet checked
- Wild in
- W. & C. U.S.A. to C. AmericaKew's checklist, not yet checked
- Light
- Full sun (6 h or more)Read from Plants for a Future, one source
- Height
- 1.3 mRead from Wikipedia and Plants for a Future, checked: the middle of what its sources sayHalfway between its 2 sources, which differ. Sources differ: Wikipedia 1.8–1.8 m; Plants for a Future 0.8–0.8 m
- Flowers
- YellowRead from Wikipedia, one source
- Coldest it survives
- -23.3 °C (USDA zone 6a)Read from Plants for a Future, one source
Not known yet: spread, water, heat, hottest it survives.
In other languages (2)
- Spanish
- onagra alta
- French
- onagre de Hooker
Where this comes from
- iNaturalist, read 2026-10-25, CC0-1.0 (observation counts)
- Wikidata, read 2026-10-25, CC0-1.0
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- Plants for a Future, read 2026-10-26, fact, cited
- Wikipedia, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-25, CC BY-SA 3.0
- iNaturalist, read 2026-10-25, CC BY
- iNaturalist, read 2026-10-25, CC BY
- iNaturalist, read 2026-10-25, CC BY
- 3D model: Oenothera elata (built for Vanagrha) by Vanagrha, own
A fact “checked by a majority of its sources” was settled by a vote of the pages it was read from, not by a person reading it; one marked “one source” rests on that page alone. Anything else not marked checked has not been checked yet. Where nothing is known, the page says so rather than guess.