Chiba University Matsudo/Kashiwa Campus Plant Database

Details of genus: Nerium L. [605]

genus_ja:

genus_en: Oleander

# spp.:

pub_year:

accepted: Accepted

Family: Apocynaceae

family_ja: キョウチクトウ

Infra familial classification:

distribution_en: Medit. to E.Asia

description_en: Genus of 1 or 2 species of evergreen shrubs or small trees found in seasonally dry stream beds and margins from the Mediterranean to China. They are grown for their often large, terminal cymes of colourful, narrowly funnel-shaped or salverform flowers, which each have 5 broad, spreading, angular petal lobes, and are followed by forked, elongated, bean-like seed pods. Lance-shaped leaves are narrow, leathery, and borne in opposite pairs or whorls of 3. N oleander has been widely naturalized. Numerous cultivars have been raised, both single- and double-flowered, with white, yellow, apricot, pink, red, purple-red, and lilac flowers. In frost-prone areas, grow N. oleander in a cool greenhouse and move outdoors in summer; in warmer climates, use as a specimen plant or grow in a shrub border, or as a hedge. All parts are highly toxic if ingested; contact with foliage may irritate skin.

hardiness_en: Most are frost tender, but may survive short periods at 0°C (32°F). N. oleander ‘Little Red’ is hardy to -12°C (10°F).

cultivation_en:

propagation_en: Sow seed at 16°C (61°F) in spring. Root semi-ripe cuttings in summer, with bottom heat. Air layer in spring.

pests_en: Scale insects, mealybugs, and red spider mites may be a problem under glass.

description_ja:

comment:

comment_ja: キョウチクトウ

type_species:

Phylogenetic definition:

Update Information: Created: 2007-12-06 12:51; Updated: 2022-03-09 15:20

family: