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Products > Yucca rigida
 
Yucca rigida - Blue Yucca
   

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Habit and Cultural Information
Category: Succulent
Family: Agavaceae (Agaves)
Origin: Southwest (U.S.) (North America)
Evergreen: Yes
Flower Color: White
Bloomtime: Spring
Height: 8-12 feet
Width: 4-5 feet
Exposure: Full Sun
Summer Dry: Yes
Deer Tolerant: Yes
Irrigation (H2O Info): Low Water Needs
Winter Hardiness: 0-10 F
Yucca rigida (Blue Yucca) A stunning slow-growing tree-like yucca with upright stems of minimal branching to 12 feet tall that have attractive 3 foot long by 1 inch wide, stiff, slightly waxy, pale silver to whitish gray leaves that have narrow yellow margins and are tightly clustered to form dense rosettes on top of the stems. The old leaves fall off leaving a fibrous soft gray covering on the trunk. Large clusters of white flowers hang downward along the upright stout spikes that rise from within the crowns 2 feet or more in late spring. This yucca performs best in warm sunny areas with good drainage and occasional to infrequent summer irrigation. It is noted as preferring alkaline conditions and is hardy to around 0F. This plant is from the northern Mexican states of Chihuahua, Coahuila, Durango, and Zacatecas. Our plants came from seed purchased as Yucca rostrata but the crop had many plants that were clearly not Yucca rostrata which has shorter, slightly twisted and softer leaves. The specific epithet describes well the inflexible characteristic of this plant's leaves we once heard a person jokingly describing the difference between Yucca rostrata and Yucca rigida by saying that if you forcefully push the palm of one's hand against the leaf of each species that the Yucca rostrata leaf may prick you but the Yucca rigida leaf could well go through your hand. Other common names include Silver Leaf Yucca and Palmilla. The name Yucca was given to the genus by Linnaeus, perhaps by mistake, as it is the Latinized derivation of "yuca", the Caribbean name for Cassava (Manihot esculenta) an unrelated plant in the Euphorbia family that is native to the Caribbean area. Interestingly it was also Linnaeus who applied the name Manihot to Yuca.  This description is based on research and observations of this plant as it grows in our nursery, in our nursery garden and in other gardens that we visit. We also incorporate comments received and appreciate getting feedback of any kind from those who have any additional information about this plant, particularly if they disagree with what we have written or if they have additional cultural tips that would aid others in growing Yucca rigida.
 
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