Yucca ×schottii Engelm. (pro sp.)
Schott's yucca, Hoary Yucca, Mountain Yucca
Agavaceae (Century-Plant Family)
Synonym(s): Yucca arizonica, Yucca baccata var. brevifolia, Yucca brevifolia, Yucca macrocarpa, Yucca puberula, Yucca thornberi, Yucca treleasei
USDA Symbol: YUSC
Hoary yucca is a large, handsome, often-cultivated yucca. It is branched as high as 6 ft. above the base and has a total height of up to 17 ft. Leaves, about 2 ft. long, are borne up to the base of the flowering stem. Large, whitish flowers appear in a large cluster atop the short flowering stem. Fruit is fleshy, becoming pendent.
Schott Yucca extends to a higher altitude than other tree yuccas. It is named for Arthur Carl Victor Schott (1814-75), a German-born naturalist with the United States and Mexican Boundary Survey, who discovered this species in 1855.
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Plant CharacteristicsDuration: Perennial
Root Type: Fibrous
Leaf Complexity: Simple
Leaf Shape: Lanceolate
Leaf Venation: Parallel
Leaf Pubescence: Glabrous
Leaf Apex: Acuminate
Leaf Base: Truncate
Leaf Texture: Smooth
Breeding System: Flowers Bisexual
Leaf: blue-green or gray-green
Flower: Flower to 5 cm long. Sepals 3. Petals 3 broader than sepals. Stamens 6 shorter than petals. Ovary with 3 stigmas.
Fruit: Black seeds
Size Class: 12-36 ft.
Bloom InformationBloom Color: White
Bloom Time: Jul , Aug , Sep
DistributionUSA: AZ , NM
Native Distribution: S.w. NM, s.e. AZ & n. Mex.
Native Habitat: Hillsides & canyons; 4000 to 7000 ft.
Growing ConditionsLight Requirement: Sun
Soil Moisture: Dry
Soil Description: Rocky soils.
Conditions Comments: The Hoary Yucca is a handsome species often collected for ornamentation.
BenefitConspicuous Flowers: yes
Deer Resistant: High
PropagationDescription: Yuccas will germinate promptly from fresh seed held over winter. Seeds germinate best in 60-70 degree temperatures. Yuccas may also be grown from rhizomes, stem cuttings, or by digging offsets from the side of established plants. Transplant into a well
Seed Collection: Gather capsules as they begin to dry but before they split. Allow to dry, then crush to remove seeds. Overwinter, keep seeds in moist sand in the refrigerator. For longer storage periods, keep in sealed, refrigerated containers.
Seed Treatment: Not Available
Commercially Avail: yes
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Lady Bird Johnson Wildflower Center - Austin, TX
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Additional resourcesUSDA: Find Yucca schottii in USDA Plants
FNA: Find Yucca schottii in the Flora of North America (if available)
Google: Search Google for Yucca schottii
MetadataRecord Modified: 2010-04-17
Research By: LAL, JSC