It has an attractive pompom like head, which itself contain hundreds of thin sword-shaped leaves. Although stiff, these leaves are flexible and look nice swaying in the wind.
These sturdy leaves are typically 2 feet (60 cm) in length, thin, a pale grey-blue-green color with yellow margins, slightly waxy, and tapered at the tip. The leaves of the cultivar 'Saphire Skies; are a powder blue color.
Yucca rostrata and park benches photograph by Megan Hansen, CC.
Yucca rostrata blooms in spring when it carries a long panicle of white flowers. The inflorescence itself is a yellow-orange color and can reach about 40 inches (100 cm) in height.
Leaf Foliage: Spheres of hundreds of leaves. Sword-shaped, Blue, Green, Silvery. Stiff. Waxy. Leaves can reach two to three feet (60 to 90 cm) long.
Growth Form: Upright, Erect.
Ideal Growing Conditions
Best Light Conditions: Full sunlight for best results. Can tolerate partial shade.
Suitable Soil Types: Rocky and porous soils are ideal. Can easily grow in poor soils and sand. Rich and Loamy gives fairly good results.
Soil Moisture: Fairly moist, Well drained. Drought tolerant once established.
Rate of Growth: Grows slowly
Yucca rostrata Care Conditions
Level of Maintenance: Low.
Propagation Details Seeds: Sow in sand or a very well drained soil gravel mix. Cover seeds to about 3 mm (1/8th inch). Germination takes about two months at 16 to 18°C (59 to 65°F). Grow indoors in pots for the first couple of years as Yucca rostrata plants are slow growing. Cuttings Winter, root cuttings. or plant from offsets.
Spacing: 10 feet (3 m)
Care: Provide shelter from drying winds. Ensure soil is well drained (add pebbles if required) as this plant is susceptible to root rot in the winter.
How to Prune: Not required. Ornamental shaving of old leaves to reveal the trunk.
Pests: Snails, Blackfly, Beetle larvae,
Diseases: Yucca leaf spot, Root rot,
Can Attract: Hummingbirds
Tolerant of: Deer, Rabbits, Drought
Closely Related Species: Asparagus, Lirope, Nolina, Eucomis, and Hosta.
Miscellaneous: North American native. Traditional food and fiber source of Native Americans.