Dioon spinulosum
Giant Dioon
Family |
Zamiaceae |
Genus |
Dioon |
Species |
spinulosum |
Category |
Tropicals, Woody |
Type |
Shrub (evergreen) |
USDA Hardiness Zone |
9b - 11 |
Canadian Hardiness Zone |
9a and greater |
RHS Hardiness Zone |
H1c - H3 |
Temperature (°C) |
-5 to 10 |
Temperature (°F) |
23 to 50 |
Height |
5 to 15 m |
Spread |
1.5 to 2 m |
General Description |
This cycad is one of the tallest species in its genus. A single trunk supports large, green, leaves that radiate from the centre. |
Landscape |
Rock garden, city landscaping, and as a single specimen. |
Cultivation |
Grow in moist, gritty, well-drained soil in partial shade. |
Shape |
Upright to rounded. |
Growth |
Fast |
Pests |
No notable pests or diseases. |
Habitat |
Limestone cliffs, rocky hillsides, and tropical rainforests. |
Leaf Description |
Green, pinnate leaves measuring 1.5 to 2 m radiate from the top of the stem. |
Notable Specimens |
Chelsea Physic Garden, London, United Kingdom. |
Propagation |
Propagate by seed or division. |