Hedychium Gardnerianum - Kahili ginger
H. gardnerianum is an erect rhizomatous perennial to 2m, with grey-green lance-shaped leaves and cylindrical racemes of fragrant, lemon-yellow flowers with prominent red stamens in late summer and early autumn.
Native to moist tropical forests of the eastern Himalayas in northern India, Nepal and Bhutan it is a popular landscape ornamental subtropical plant. Suitable for USDA zones 8 to 11, the plant will survive light frosts but must be dug up and stored somewhere dry when hard winter frosts bed in.
Supplied as an established small plant in a 0.5ltr pot - 11cm.
Grow in humus-rich, fertile, moist but well-drained soil in full/ part sun. Choose a warm position sheltered from cold winds and give a deep winter mulch. In hard frosts lift the rhizomes and store somewhere dry until spring.An alternative is to grow it in a large container on a warm, sunny patio and to overwinter indoors or under glass.