千葉大学東葛キャンパス植物データベース

属名の詳細: Nerium L. [605]

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属英名: Oleander

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科名: Apocynaceae

科の和名: キョウチクトウ

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原生地・分布（英語）: Medit. to E.Asia

説明（英語）: 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.

耐寒性（英語）: 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).

栽培（英語）:

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

病害虫（英語）: Scale insects, mealybugs, and red spider mites may be a problem under glass.

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備考: キョウチクトウ

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更新情報: 作成: 2007-12-06 12:51; 更新: 2022-03-09 15:20

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