Costus arabicus (Spiral Ginger)
Botanical Information
Family | Costaceae |
Genus | Costus |
Species | arabicus |
Synonyms | Costus spiralis, Costus verschaffeltii, Costus discolor, Costus niveus, Costus niveo-purpureus Jacquin 3594, Costus glabratus Swartz, Costus brasiliensis, Costus gracilis, Costus niveo-purpureus Jacquin, Costus pilgeri, Costus pubescens, Costus ram |
Category | Perennials, Tropicals |
Details
USDA Hardiness Zone | 9 -11 |
USDA Hardiness Ref. | |
Canadian Hardiness Zone | Requires cold season protection under glass. |
Canada Hardiness Ref. | |
RHS Hardiness Zone | H1c - H4 |
RHS Hardiness Ref. | |
Temperature (°C) | -3.9 - -1 °C |
Temperature (°F) | 25 - 30 °F |
Height | 1 - 1.5 m |
Spread | 1 m |
Description and Growing Information
Landscape | Use as a potted plant or massing in the tropical landscape. |
Propagation | By division of clumps. |
Cultivation | Grows well in shade to partial sun. During active growth it needs rich, moist, organic soil. |
Leaf Description | Medium green, spiralling around the sheaths. |
Flower Description | Pure white flowers with a splash of yellow in the labellum. |