千葉大学東葛キャンパス植物データベース

属名の詳細: Nelumbo Adans. [329]

属和名: ハス

属英名: Lotus

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正名？: 正名

科名: Nelumbonaceae

科の和名: ハス

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原生地・分布（英語）: E. N.America, Warm Asia to Aus.

説明（英語）: Genus of 2 species of rhizomatous, marginal aquatic perennials from Asia, N. Australia, and E. North America, found at the shallow margins or on the muddy banks of pools. They are widely cultivated and naturalized in subtropical and tropical areas. The handsome, horizontally held, peltate, waxy-bloomed, almost circular leaves are held well above the water. The showy, solitary, fragrant, water lily-like flowers are borne on long stalks, and develop distinctive, flat-topped seed pods that may be dried for use in flower arrangements. They are excellent as specimen plants in an outdoor pool. In frost-prone areas, grow N. nucifera with giant water lilies (Victoria) in an indoor tropical pool, or in large, water-filled half-barrels on a patio outdoors; overwinter in frost-free conditions.

耐寒性（英語）: Half hardy to frost tender; in cold climates, N. lutea and some N. nucifera cultivars can be overwintered outdoors given sufficient summer warmth to ripen the rhizomatous roots; these will survive if well below any frozen soil or water.

栽培（英語）:

繁殖（英語）: Sow seed in spring, preferably scarified before sowing, at a minimum temperature of 25°C (77°F), in small containers of loam covered by 5cm (2in) of water. Increase water depth and container size until plants are large enough to plant in the flowering site. Carefully divide the fragile rhizomes, which resent disturbance. In spring, plant rootstock horizontally just below the soil surface, and barely submerge until growth starts.

病害虫（英語）: Outdoors, leaves may be attacked by corn-borers and woolly-bear caterpillars, and by various leaf-spotting diseases, particularly brown spot and dry brown spot. Red spider mites and whiteflies may be a problem under glass.

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備考: ハス

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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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