Photo by Melody

PlantFiles: Spanish Bayonet, Harriman's Yucca
Yucca harrimaniae

Family: Agavaceae (ah-gav-AY-see-ee) (Info)
Genus: Yucca (YUK-uh) (Info)
Species: harrimaniae

One vendor has this plant for sale.

3 members have or want this plant for trade.

Cactus and Succulents

6-12 in. (15-30 cm)

15-18 in. (38-45 cm)

USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)

Sun Exposure:
Full Sun

Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:
White/Near White

Bloom Time:
Unknown - Tell us


Other details:
Drought-tolerant; suitable for xeriscaping
Provides winter interest
Suitable for growing in containers

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds

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1 positive
1 neutral
No negatives

Gardeners' Notes:

Positive DJClemons On Apr 30, 2011, DJClemons from Vermilion, OH wrote:

I just bought a house from an amazing gardener in her 80's. She planted 6 Yucca harrimaniae on the property as small plants. They are now HUGE- about 2 1/2 feet tall spikes and I'm told the flowers will stand taller. I dug one up to give to a friend to find it was 4 seperate plants with an extensive bulbous root system. I now nothing about these plants. I do know they thrive here in northern Ohio and that is amazing. All I read is that it is a midwestern plant. I have been told they are valuable, which is why I dug one up to give to a friend. I plan on putting several rock gardens in the yard, so I will transplant some to those. Question: How do I move these without damaging the bulbs? It seems, as big as these are, I couldnt dig far enough from the plant without cutting a bulb. Thanks for the info, in advance.

Neutral palmbob On Jun 20, 2005, palmbob from Acton, CA (Zone 8b) wrote:

this is a common stemmless Yucca of the Rocky Mountain states that was, along with Yucca glauca, one of my least favorite plants in my youth- got stabbed by them all the time while hiking about the New Mexican mesas and canyons. Bayonet is a good description of this plant, and though I now find it somewhat ornamental, its pugnacity keeps me from giving it a 'thumbs up'.


This plant has been said to grow in the following regions:

Grand Junction, Colorado
Mount Sterling, Kentucky
High Rolls Mountain Park, New Mexico
Las Cruces, New Mexico
Glen Margaret, Nova Scotia
Vermilion, Ohio
Lindon, Utah
Santaquin, Utah

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