Alocasia macrorrhiza
Giant Taro, Giant Elephant Ear, Upright Elephant Ear.
| Family |
| Araceae |
| Genus |
| Alocasia |
| Species |
| macrorrhiza |
| Category |
| Bulbs, Perennials, Tropicals |
| USDA Hardiness Zone |
| 9 - 12 |
| Canadian Hardiness Zone |
| Requires cold season protection under glass. |
| RHS Hardiness Zone |
| H1a |
| Height |
| 4 - 5 m |
| Spread |
| 1 - 2 m |
| Landscape |
| Perfect as a greenhouse plant for containers, or for the shade gardens. |
| Cultivation |
| Best grown in part shade or filtered sun in moist to wet, organically rich soils in sheltered locations protected from strong winds. |
| Growth |
| Fast |
| Pests |
| May be prone to spider mites, scale, mealy bugs, and aphids. |
| Leaf Description |
| Thick, sculpted, glossy green, wavy-edged leaves, and up to 1 m long. |
| Notable Specimens |
| Queen Sirikit Botanic Garden, Mae Rim District, Chiang Mai Province, Thailand. |
| Propagation |
| By seed and division of offset corms. |
| Ethnobotanical Uses (Disclaimer) |
| Roots are used to treat swollen lymph glands and the stem is used to treat stomach-ache and diarrhoea. The corm and stem are eaten cooked. |