Kahili ginger is a tall, fragrant perennial from the ginger family, growing up to about 2.4 m with bright green leaves and dense spikes of yellow and red flowers in late summer. It needs warmth and shelter, and is hardy only to light frost.
Family
Zingiberaceae (Ginger family)
Grows as
Perennial
Light
Part shade, Bright indirect
Water
Keep soil consistently moist, especially during active growth.
Soil
Fertile, moist, well-drained soil rich in organic matter.
Temperature
Prefers warm conditions; protect from frost, as it tolerates only occasional light frosts.
How easy
Easy
Safety
Toxic. Not toxic to cats or dogs (ASPCA).
Native range
Nepal to Indo-China
Climate
subtropical
About
Hedychium gardnerianum, the Kahili ginger, Kahila garland-lily or ginger lily, is a species of flowering plant in the ginger family Zingiberaceae, native to the Himalayas in India, Nepal, and Bhutan. It is an erect herbaceous perennial growing to 8 ft (2.4 m) tall with long, bright green leaves clasping the tall stems. The very fragrant pale yellow and red flowers are held in dense spikes above the foliage. They appear towards the end of summer.
How to grow it
Hedychium gardnerianum is cultivated as an ornamental plant in gardens and parks. It prefers a warm tropical climate, although it can thrive in sub-tropical and temperate regions as it tolerates occasional frosts. In the UK it has been given the Royal Horticultural Society's Award of Garden Merit. It is best grown in a warm, sheltered spot where temperatures do not fall below freezing, and is given a deep mulch during the winter months. Alternatively it can be grown under glass in a well-lit conservatory or greenhouse.
Uses
Medicinal research indicates that the plant compound, villosin, in Hedychium gardnerianum has potent cytotoxicity activity against human small cell lung cancer cells.
Text excerpted from the Wikipedia article Hedychium gardnerianum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.