Nerium oleander
Apocynaceae
Oleander
Evergreen shrub or small tree; masses of colourful flowers; green lanceolate leaves.
Uses
Hedging, windbreak (subtropical regions), shrubbery, conservatory plant, wall shrub.
Culture
Open or protected position, full sun to half shade; sap is poisonous and an irritant if it touches the skin so wear protective gear when pruning. Prune annually (perhaps removing 20-30% of foliage) to stimulate new growth and stronger display of flowers.
Propagation
Cuttings to 7.5-10cm may be taken in summer and kept at 16-18 degrees C. Otherwise, sow seeds in early spring.
Cultivars
N. oleander is a medium to large shrub with leathery lance-shaped leaves and single white summer flowers lasting into autumn. Single and double-flowering forms exist with white, pink or red flowers.
There are two to three species of Nerium, but this is the only one widely cultivated.
Plant Health
Hardy in mild or hot climates; in cold areas though, tender to half-hardy; drought tolerant once established; young growth can be frost sensitive; will grow from mild temperate (e.g. London or Melbourne) climates through to tropical areas, but still need protection in mild temperate areas. In cooler temperate regions they are best grown as conservatory or greenhouse plants. Scale and mealy bugs are sometimes a problem. Discoloured foliage may occur as a result of a physiological disorder.
More info
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