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Oenothera
Also called Evening Primroses, Eveningprimrose
Oenothera is a genus of about 160 herbaceous plants from the Americas, including common evening primrose, sundrops and white gaura, with flowers that mostly open in the evening. Most grown forms are drought-tolerant perennials or annuals that thrive in sun and sharp-draining soil.
Oenothera is a genus of about 160 species of herbaceous flowering plants native to the Americas. The genus includes the plants known as common evening primrose, narrow-leaved sundrops and white gaura. It is the type genus of the family Onagraceae. They are not closely related to the true primroses (genus Primula).
A number of perennial members of the genus are commonly cultivated and used in landscaping in the southwestern United States. Popular species include tufted evening primrose (Oenothera cespitosa), Mexican evening primrose (Oenothera berlandieri), and Saltillo evening primrose (Oenothera stubbei).
Annual evening primroses are also popular ornamental plants in gardens. Many are fairly drought-resistant.
Oenothera flowers are pollinated by insects, such as moths and bees. Like many other members of the Onagraceae, however, the pollen grains are loosely held together by viscin threads, so only insects that are morphologically specialized to gather this pollen can effectively pollinate the flowers. Bees with typical scopa cannot hold it. Also, the flowers open at a time when most bee species are inactive, so the bees which visit Oenothera are generally vespertine temporal specialists: bees that forage in the evening. The seeds ripen from late summer to fall.
Common evening primrose · Tufted Evening Primrose · Antioch Dunes evening primrose · Birdcage evening primrose · Beach evening primrose · Hooker's evening primrose · Narrowleaf evening primrose · Redsepal evening primrose · Cutleaf evening primrose · Lindheimer's Beeblossom · Threadleaf evening primrose · Longstem evening primrose
Text excerpted from the Wikipedia article Oenothera by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
