Oleander

Oleander is a toxic evergreen flowering shrub in the dogbane family, scientifically known as *Nerium oleander*.

Oleander is a toxic evergreen flowering shrub in the dogbane family, scientifically known as *Nerium oleander*. It is widely cultivated as an ornamental plant in warm climates for its showy, clustered flowers and drought tolerance. All parts of the plant contain poisonous cardiac glycosides and can be harmful if ingested.

Description

Oleander is a fast-growing evergreen shrub or small tree with long, narrow, leathery leaves and clusters of flowers at the ends of branches. Cultivated forms produce blossoms in several colours and may have single or double flowers.

Distribution and cultivation

The species is native to a region spanning southern Europe, North Africa, and western to southern Asia, but it is widely grown elsewhere in warm climates. It is commonly used in hedges, roadside plantings, and coastal landscapes because of its hardiness.

Toxicity

Oleander contains poisonous cardiac glycosides, especially oleandrin, in all parts of the plant. Ingestion can cause severe gastrointestinal and cardiac symptoms, and the sap may irritate skin in some people.

Horticultural use

Gardeners value oleander for its ability to bloom for long periods and tolerate poor soils, heat, and drought. It is often selected for low-maintenance landscaping in frost-free areas.