OENOTHERA

Commonly referred to as evening primrose, this genus contains over 120 species of annuals, blennials, and perennials of the willow herb family (onagraceae). species are found in the temperate zones of the americas and may vary considerbly: some have taproots and tend to grow upright; others have fibrous roots; and certain species have a sprawling growth habit. The foliage varies from clump-forming with soft, hairy, toothed- or lance-shaped leaves to large rought leaves growing on erect stems. The cup-shaped flowers make a lovely display over summer in bright shades of yellow, or less commonly, pink, red, or white. Evening primrose oil is extracted from the plant's tiny seeds and is used in a range of homeopathic remedies.

CULTIVATION

Mostly very hardy, these tough adaptable plants prefer full sun and light, gritty, free-draining soil. Summer watering produces stronger growth but they will also tolerate drought conditions. Fibrous-rooted species can be divided when dormant, otherwise propagate from seed or from cuttings taken from the base of the plant.

Top Tip

These plants have both culinary and medicinal uses. Evening primrose oil from the seeds is said to be highly therapeutic, and the leaves can be eaten in salads or used to make tea.