PlantsAgaves→Utah Agave (Agave utahensis)

Common names:
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General Plant Information (Edit)
Plant Habit: Cactus/Succulent
Life cycle: Perennial
Sun Requirements: Full Sun
Minimum cold hardiness: Zone 6a -23.3 °C (-10 °F) to -20.6 °C (-5 °F)
Leaves: Evergreen
Fruit: Dehiscent
Flowers: Showy
Suitable Locations: Xeriscapic
Uses: Will Naturalize
Resistances: Deer Resistant
Toxicity: Other: The juice from many species of agave can cause acute contact dermatitis that produces reddening and blistering lasting approximately one to two weeks. Itching may recur up to a year later without a visible rash. Dried parts of the plants can be handled sa
Propagation: Seeds: Can handle transplanting
Other info: Sow in shallow pots with a well draining, sterile mix; 50/50 organic/inorganic of coarse perlite, pumice; sphagnum peat or good compost. Avoid manures. Irrigate from below by submerging in water to 1/2 height of pot. Provide bright, indirect light and a
Propagation: Other methods: Cuttings: Stem
Offsets
Other: Bulbils
Containers: Needs excellent drainage in pots
Miscellaneous: With thorns/spines/prickles/teeth
Monocarpic
Awards and Recognitions: RHS AGM

Possibly var. nevadensis.

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Comments:
Posted by Baja_Costero (Baja California - Zone 11b) on Jun 9, 2020 9:39 PM

Small blue-green agave from the area right around the intersection between California, Nevada, Utah and Arizona. The northernmost of the agaves and one of the most cold hardy. Rosettes may be green, gray-green, blue-green or blue-gray and usually grow to 10-16 inches wide, typically clumping over time. Leaves have a sharp terminal spine but teeth may be variable, and some clones are much more attractive than others. This species encompasses a range of named varieties and subspecies, varying in habit, color, spines, and inflorescence. One definitive feature of utahensis is that its teeth have brown rings around the bases, a bit like cerulata.

Kaibab Agave (Agave utahensis subsp. kaibabensis) from the Kaibab Plateau of northern Arizona near the Grand Canyon is larger, greener and solitary, whereas Utah Agave (Agave utahensis subsp. utahensis) offsets. The type subspecies includes Nevada Agave (Agave utahensis var. nevadensis), from 4000-6000 feet in California and Nevada, which is smaller, with larger teeth and a longer spine (brown or whitish) in proportion; and Ivory-Spined Agave (Agave utahensis var. eborispina), from the northwestern part of the species' range in California and Nevada, with very attractive long ivory spines and teeth.

This plant is reputed to be cold hardy to zone 6a or even 5a if kept dry during winter, but is pretty much guaranteed to crash if it gets wet and cold. It requires strong light for good form in cultivation and makes an excellent container plant, given excellent drainage. Plants in cultivation may reach a much larger size than their depauperate kin in habitat.

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Discussion Threads about this plant
Thread Title Last Reply Replies
Agave ID by BlueOddish Oct 25, 2018 7:45 PM 1
Cactus and succulents chat by Baja_Costero May 8, 2021 11:38 PM 9,974
Agave survival in the Pacific Northwest by tcstoehr Mar 15, 2021 11:25 AM 134
Post a pic of your succulents! by V33JG Dec 28, 2016 5:06 PM 68
Cactus and Succulent chat 2016 by gg5 Apr 11, 2017 11:52 AM 1,827
Site work is ongoing this morning by dave May 21, 2014 10:51 PM 6
And So It Begins... by StaticAsh Jul 27, 2016 12:28 AM 404

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