Euphorbia cornigera
Horned Spurge
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Horned Spurge (Euphorbia cornigera) - Description
Euphorbia cornigera (horned spurge) is a species of flowering plant in the family Euphorbiaceae, native to Bhutan. It is a rhizomatous herbaceous perennial growing to 75 cm (30 in) tall, rarely 1 m (3 ft 3 in), with narrow green leaves with a pale green spine. Acid yellow flowerheads (cyathia) are borne in summer. It has gained the Royal Horticultural Society's Award of Garden MeritAll parts of the plant are highly toxic if ingested, and the sap may cause skin irritation.
Horned Spurge (Euphorbia cornigera) - Blooming
All Euphorbia have very small flowers with one female flower clustered by several male flowers. The showy "flowers" of Euphorbia are colorful bracts beneath the true flowers.
Horned Spurge (Euphorbia cornigera) - Growth
An extremely varied genus, Euphorbia contains annuals, biennials, perennials, subshrubs, trees, and succulents. Most species do well in full sun and light shade, but some species may have other requirements.
Horned Spurge (Euphorbia cornigera) - Planting
Propagate perennials by division or by seeds. Sow seeds of annuals indoors 6-8 weeks before the last spring frost. For succulents, sow seeds when ripe at 59-69F (15-20C). Can also propagate by rooting complete or sections of stems in spring. Shrubs and tree species can be broadcasted by rooting stem-tip cuttings in spring or early summer.
Horned Spurge (Euphorbia cornigera) - Pest
Nematodes, spider mites, mealybugs, and aphids can cause serious damage. Other issues include fungal and bacterial diseases and virus problems.
Horned Spurge (Euphorbia cornigera) - Interesting facts
Euphorbia is one of the most diverse genera of plants, and named after an ancient Greek physician, Euphorbus, who gave an herbal remedy made from a spurge to treat the kings swollen belly. The common name spurge also comes from its use as an herbal purgative.
Horned Spurge (Euphorbia cornigera) - Soil and irrigation
Most perennials prefer loose, poor to average, well-drained soil. Different species have different requirements.
