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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
AprilMayJuneJuly
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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