The Main Plant entry for Oenotheras (Oenothera)

This database entry exists to show plant data and photos that apply generically to all Oenotheras.

Chicago Botanical Garden

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Posted by Marilyn (Kentucky - Zone 6a) on May 20, 2013 10:03 PM

"Oenothera is a genus of about 125 species of herbaceous flowering plants, native to North and South America. It is the type genus of the family Onagraceae. Common names include evening primrose, suncups and sundrops. They are not closely related to the true primroses (Primula).

The flowers of many species open within less than a minute in the evening, hence the name "evening primrose", and are yellow in most species but white, purple, pink or red in a few. Most native desert species are white. The fragrant tufted evening primrose Oenothera caespitosa, a Southwestern species, blooms white, with flowers turning pink or light magenta as they age.

One of the most distinctive features of the flower is the stigma with four branches, forming an X shape.

Oenothera species are used as food plants by the larvae of some Lepidoptera species including Schinia felicitata and Schinia florida, both of which feed exclusively on the genus, the former exclusively on O. deltoides."

Taken from wikipedia's page at:

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MrsBinWY On August 22, 2020 Transplanted
11 near where Corylus colurna was; uprooted at least 1 in July 2021 while digging grass, potted 1 until it recovered and replanted on 8-1-2021
MrsBinWY On June 19, 2020 Potted up
dog spilled the container; potted 11 very small seedlings up
MrsBinWY On June 5, 2020 Seeds germinated
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16 in milk jug & put on back patio
MrsBinWY On April 10, 2017 Seeds germinated
MrsBinWY On April 2, 2017 Seeds sown
milk jug, room temp, 16 unidentified seeds from Joyce from Wende
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