Oenothera fruticosa
Evening Primrose
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Evening Primrose (Oenothera fruticosa) - Description
Oenothera fruticosa, or narrow-leaved sundrops, is a species of flowering plant in the evening primrose genus of the family Onagraceae, native to much of eastern North America. It is an erect herbaceous perennial growing to 20–90 cm (8–35 in) tall, with alternative, simple, entire or slightly toothed leaves. The saucer- or cup-shaped yellow flowers, 2. 5–5 cm (1–2 in) in diameter, appear in late spring and summer. The fruit is a capsule that is strongly 4-angled or winged and shaped like a club.
Evening Primrose (Oenothera fruticosa) - Blooming
Blooms during the summer with large cup-shaped flowers that are usually white, yellow, or pink. The flowers open at dawn or dusk.
Evening Primrose (Oenothera fruticosa) - Growth
Evening Primroses do well in full sun. Plant height varies depending on variety. One species can grow to approx. 6 ft. tall. Works great in a rock garden.
Evening Primrose (Oenothera fruticosa) - Planting
Propagate from the seed. Annuals and perennials should be planted in spring, biennials in summer (if planting in containers in a cold frame). Can also plant annuals and biennials "in situ" in fall. Propagate from softwood cuttings of perennials in spring before flowering occurs. Plant cuttings at a distance from seeded plants to avoid interference between taproot species. Can achieve this by first planting in containers.
Evening Primrose (Oenothera fruticosa) - Pest
Under wet conditions, Oenothera is susceptible to root rot. Other issues include downy mildew, powdery mildew, rust, leaf gall, and leaf spot, all of which are quite common.
Evening Primrose (Oenothera fruticosa) - Interesting facts
Oenothera is mostly native to North America, although some species are found in South America.
Evening Primrose (Oenothera fruticosa) - Soil and irrigation
Plant requires little irrigation. Does best in poor-moderately fertile, gritty soil. Soil must be well-draining.
