Perennials, Tropicals > Yucca > Yucca gigantea > Yucca gigantea 'Silver Spear'
Yucca gigantea
'Silver Spear'
Silver Spear Giant Yucca
| Family |
| Asparagaceae |
| Genus |
| Yucca |
| Species |
| gigantea |
| Cultivar |
| 'Silver Spear' |
| Category |
| Perennials, Tropicals |
| USDA Hardiness Zone |
| 9a - 11 |
| Canadian Hardiness Zone |
| Requires cold season protection under glass. |
| RHS Hardiness Zone |
| H4 - H1c |
| Temperature (°C) |
| (-6.7) - (-3.9) |
| Temperature (°F) |
| 20 - 25 |
| Height |
| 3 – 6 m |
| Spread |
| 1.8 - 3 m |
Photographs
Description and Growing Information
Flowering Period
| Cultivation |
| Grow in a loam-based compost, but can tolerate chalky soil or sand. It can grow well in soils of any acidity. The soil should be slightly moist but well-drained. In the spring, summer and autumn grow outside in containers. In the winter grow indoors under glass in temperate climates. |
| Growth |
| Medium |
| Pests |
| Scale, yucca moth borers, yucca weevils, leaf spot, and root rot . |
| Habitat |
| Horticultural origin. |
| Bark/Stem Description |
| A large, upright shrub or small tree with several trunks forming near ground level and sparsely branched. |
| Leaf Description |
| Variegated green and blue-grey stiff, leathery, narrow, strap-like, spineless leaves to 1. 2 m in length fan out in clumps. |
| Flower Description |
| Flowering spikes up to 1 m long appear in summer and autumn bearing large numbers of creamy-white, hanging flowers. |
| Fruit Description |
| Oval to 2.5 cm long, brown, fleshy fruit. |
| Notable Specimens |
| Harry P. Leu Gardens, Orlando, Florida, United States of America. |
| Propagation |
| By removing offsets. |
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