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. |