Landscape Use: Strong vertical accent, year-around sculptural interest, xeriscape landscape design themes.
Form & Character: Stiff and upright, sometimes arborescent, foreboding, untouchable, branched when mature, arborescent
Growth Habit: Evergreen soft-wooded perennial, very slow when young. Eventually growing to 12 to 15 feet tall.
Foliage/texture: Foliage is distinctly glaucous (powder blue in color) and slender to about 2 feet long, VERY STIFF, strap-like leaves, inflexible, persistent; medium coarse texture.
Flowers & fruits: 3 feet flower stalk bearing white flowers in clusters.
Seasonal color: White flowers in Spring.
Temperature: Tolerant of cold to 10oF and lower desert heat.
Light: Full sun
Soil: As with other xeric yuccas, well-drained soil is a must requirement and rocky porous soil is preferred.
Watering: Rarely apply supplemental water.
Pruning: None, leaves persistent dead leaves for natural appearance.
Disease and pests: Fungal root rot in damp soils, and desert grubs or larvae that feed on roots. Apply diazinon granules into the soil to control grub activity.
Additional comments: Very foreboding stiff and dangerous character makes use of this plant limited to areas away from pedestrian traffic areas and activities.