Glendale Public Library
Xeriscape Demonstration Garden Information Sheet

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Yucca rigida-Blue Yucca

Another trunk-forming yucca, Blue yucca grows to 12 feet tall, with minimal branching near the top. Its distinctive, powder blue leaves are fairly rigid, with yellow margins. These blue leaves are about 3 feet long by 1 inch wide, and have a nasty spine at the tip. In the summer the blue foliage is complemented by a showy 5 to 6 foot stalk of white flowers. For best growth, provide supplemental water in the summer, and plant in well-drained soils. Blue yucca can be planted in full sun or very light filtered shade, and is hardy to 5º F. USDA Zone 7.