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Showy Evening Primrose

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description Showy Evening Primrose Overview

Showy evening primrose, Oenothera speciosa, is a perennial wildflower native to central and southern North America. It spreads through underground rhizomes and produces broad, four-petaled flowers that are usually pale pink or white with darker veins and yellow centers. The flowers commonly open toward evening, attract moths and other pollinators, and can form extensive colonies in prairies, roadsides, and other sunny habitats.

help Showy Evening Primrose FAQ

Is the showy evening primrose (Oenothera speciosa) native to North America?

Yes, showy evening primrose (Oenothera speciosa) is a perennial wildflower native to central and southern North America. Its native range extends from the central United States into parts of Mexico. It has since naturalized in other regions around the world.

What color are the flowers of Oenothera speciosa?

Showy evening primrose produces broad, four-petaled flowers that are usually pale pink or white with darker pink or red veins and yellow centers. The flowers can change color as they age. The plant blooms from spring through early summer.

Is showy evening primrose invasive or aggressive in gardens?

Showy evening primrose spreads readily through underground rhizomes and can become aggressive in garden settings. In some regions outside its native range, such as parts of Europe, it is considered invasive. Gardeners often plant it in contained areas to manage its spread.

Does Oenothera speciosa bloom at night or during the day?

Despite its common name 'evening primrose,' Oenothera speciosa flowers typically stay open during the day, which is why it is also called 'showy.' Many other Oenothera species open primarily in the evening. The flowers are pollinated by bees, butterflies, and moths.

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