Yucca Species, Blue Yucca, Palmilla, Silver Leaf Yucca

Yuccaluminosa

Genus
Yucca (YUK-uh)
Species
luminosa (loo-min-OH-suh)
Synonym
Yucca rigida var. inermis
Yucca rupicola var. rigida
Sun Exposure
Full Sun
Sun to Partial Shade
Light Shade
Foliage
Grown for foliage
Evergreen
Height
12-15 ft. (3.6-4.7 m)
15-20 ft. (4.7-6 m)
Spacing
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
Hardiness
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Danger
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color
Cream/Tan
Bloom Time
Mid Spring
Other Details
Category
Cactus and Succulents
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Foliage Color
Bronze
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From softwood cuttings
From semi-hardwood cuttings
From seed; germinate in vitro in gelatin, agar or other medium
Seed Collecting
Regional

This plant is said to grow outdoors in the following regions:

Chandler, Arizona

Green Valley, Arizona

Phoenix, Arizona

Tucson, Arizona

Hesperia, California

Los Angeles, California

Mission Viejo, California

San Marino, California

Spring Valley, California

Miami, Florida(2 reports)

Slidell, Louisiana

Las Vegas, Nevada

Albuquerque, New Mexico

Grenoble, Rhône-Alpes

Austin, Texas

South Jordan, Utah

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Gardener's Notes:

6
positives
0
neutral
0
negative
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C
Miami, FL (Zone 10b) | September 2016 | positive

Does fine and grows well in ground in South Florida in sun with good drainage. A beautiful species, distinctly silvery/sky blue.

M
M
Las Vegas, NV (Zone 9a) | June 2013 | positive

I have one in my yard that thrives extremely well in the Vegas heat and sun. It is a slow grower but I enjoy it every day. It gets full s...Read More

M
Chandler, AZ (Zone 9b) | March 2009 | positive

We planted ours as a small (10" diameter) plant in 2004 in our front yard. It is now about 3 1/2 ' in diameter with 3 separate "bunches"...Read More

K
Austin, TX (Zone 8b) | September 2008 | positive

Probably one of the, if not the, most attractive yuccas.
I never get tired of looking at mine, foliage strongly silver blue, with ...Read More

X
Phoenix, AZ (Zone 9b) | November 2004 | positive

Yes, I do like the blue tint also. I'll be looking for one for the landscape, no doubt.

P
Acton, CA (Zone 8b) | January 2004 | positive

Very striking blue-white leaved yucca with minimal branching. Looks a bit like Yucca rostrata, but no variegation of the leaves (though ...Read More

Featured
Broad-necked Root Borer
(Prionus laticollis)
Black Skimmer
(Rynchops niger)
Featured
Broad-necked Root Borer
(Prionus laticollis)
Black Skimmer
(Rynchops niger)