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Evening primrose seeds can be sown in the first half of April (spring seeds) or from mid-July to mid-August (autumn seeds). [ 18 ] [ 21 ] The time of harvest is approximately 75 to 80 days (spring seeds) or 100 days (autumn seeds) after flowering, and clearly influenced by the plant variety, climate conditions, soil fertility and sowing time.
Evening primrose (also known as night primrose) is a pretty native flowering plant that seems perfect for a cottage garden or to fill in a raised bed. But if you grow this plant, you’ll very ...
Oenothera caespitosa at dusk, Convict Lake, Mono County CA. Oenothera caespitosa, known commonly as tufted evening primrose, desert evening primrose, rock-rose evening primrose, or fragrant evening primrose, is a perennial plant of the genus Oenothera native to much of western and central North America, in habitats such as talus slopes and sandy plains. [1]
Oenothera fruticosa is an evening primrose which stands in a height range of 16-36 inches and is a perennial wildflower. Leaves are alternating and lance-shaped, growing 2-3 inches and pubescent. The stem is straight, pubescent, and ranges in color from red-green. The petals are rounded and 1-2 inches long. Flowering is in spring to early summer.
The main phytochemical in this evening primrose seed oil is gamma-linolenic acid. [21] There is no high-quality scientific evidence that O. biennis or evening primrose oil has any effect on human diseases or promotion of health, [21] [22] and specifically no evidence that it is effective to treat atopic dermatitis or cancer.
Oenothera versicolor, the red evening-primrose, is a species of flowering plant in the family Onagraceae, native to South America, from Peru and Ecuador down to Bolivia and Northern Argentina [2] This species is not as common in cultivation as other members of the genus but popular cultivars including 'Sunset Boulevard' are grown in gardens around the temperate world as the plant is hardy down ...
Oenothera glazioviana is a species of flowering plant in the evening primrose family known by the common names large-flowered evening-primrose [1] and redsepal evening primrose. [2] Oenothera lamarckiana was formerly believed to be a different species, but is now regarded as a synonym of Oe. glazioviana .
This plant is a well-defined diploid (2n = 14) species that has varying floral traits over its geographic distribution. [1] The specific epithet cheiranthifolia refers to the leaves having the appearance of Cheiranthus, an old name for a wallflower genus. [2] Beach evening primrose flowers. The two subspecies are: