
Hesperaloe, Sapphire Skies Yucca
Yucca rostrata 'Sapphire Skies'
Height: 11 feet
Spread: 4 feet
Sunlight:
Hardiness Zone: 5b
Description:
A succulent cactus-like shrub with beautiful blue-green spear-like leaves radiating from the center and tall spikes of nodding white flowers in summer; once established, this variety is trunk forming; good for dry sites, use as a focal accent
Ornamental Features
Hesperaloe, Sapphire Skies Yucca features bold spikes of creamy white bell-shaped flowers rising above the foliage from mid to late summer. Its attractive sword-like leaves remain bluish-green in color throughout the year.
Landscape Attributes
Hesperaloe, Sapphire Skies Yucca is an herbaceous evergreen perennial with a more or less rounded form. Its relatively coarse texture can be used to stand it apart from other garden plants with finer foliage.
This is a relatively low maintenance plant, and is best cleaned up in early spring before it resumes active growth for the season. Deer don't particularly care for this plant and will usually leave it alone in favor of tastier treats. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;
- Spiny
Hesperaloe, Sapphire Skies Yucca is recommended for the following landscape applications;
- Accent
- General Garden Use
- Container Planting
Planting & Growing
Hesperaloe, Sapphire Skies Yucca will grow to be about 10 feet tall at maturity, with a spread of 4 feet. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 20 years. As an evegreen perennial, this plant will typically keep its form and foliage year-round.
This plant does best in full sun to partial shade. It prefers dry to average moisture levels with very well-drained soil, and will often die in standing water. To help this plant achive its best flowering performance, periodically apply a flower-boosting fertilizer from early spring through into the active growing season. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This is a selection of a native North American species.
Hesperaloe, Sapphire Skies Yucca is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. Because of its height, it is often used as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. It is even sizeable enough that it can be grown alone in a suitable container. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.
Special Attributes
Hesperaloe or Yucca will need to be watered during the growing season, in the Lower Columbia Basin there isn't enough rainfall during the growing season. The amount of water and regularity depends on the your soil, the wind and the heat variables at different times. Deer will eat the blooms but leave the foliage.










