Utah Agave (Utahensis)

The Utah Agave (Utahensis) is generally described as a perennial subshrub or shrub or forb/herb. This is native to the U.S. (United States) has its most active growth period in the spring and summer . The Utah Agave (Utahensis) has dark green foliage and inconspicuous yellow flowers, with an abuncance of conspicuous black fruits or seeds. The greatest bloom is usually observed in the mid spring, with fruit and seed production starting in the summer and continuing until fall. Leaves are retained year to year. The Utah Agave (Utahensis) has a moderate life span relative to most other plant species and a moderate growth rate. At maturity, the typical Utah Agave (Utahensis) will reach up to 1 foot high, with a maximum height at 20 years of 1 foot.

The Utah Agave (Utahensis) is usually not commercially available except under contract. It can be propagated by bare root, container, seed. It has a rapid ability to spread through seed production and the seedlings have high vigor. Note that cold stratification is not required for seed germination and the plant cannot survive exposure to temperatures below -23°F. has high tolerance to drought and restricted water conditions.

Plant Basics
Growth Rate Moderate
General Type Subshrub, Shrub, Forb/herb
Growth Period Spring, Summer
Growth Duration Perennial
Lifespan Moderate
Plant Nativity Native to U.S.
Commercial Availability Contracting Only
Physical Characteristics
Bloom Period Mid Spring
Displays Fall Colors Yes
Shape/Growth Form Single Stem
Drought Tolerance High
Shade Tolerance Intolerant
Height When Mature 1
Vegetative Spread Slow
Flower Color Yellow
Flower Conspicuousness Yes
Fruit/Seed Abundance High
Fruit/Seed Seasonality Summer Fall
Seed Spread Rate Rapid
Gardening Characteristics
Propagations (Ways to Grow) Bare Root, Container, Seed
Moisture Requirements Low
Cold Stratification Required No
Minimum Temperature -23
Soil Depth for Roots 6
Toxic to Nearby Plants No
Toxic to Livestock No
After-Harvest Regrowth Rate None
After-Harvest Resprout Ability No
Responds to Coppicing Yes
Growth Requirements
pH Range 7–8 pH
Precipitation Range 5–5 inches/yr
Planting Density 50–170 indiv./acre
Soil Textures Coarse, Medium
Soil Depth for Roots 6
Minimum Frost-Free Days 120 day(s)
Salinity Tolerance None
CaCO3 Tolerance High
Sustainability & Use
Leaf Retention Yes
Palatability Low
Fire Resistant No
Causes Livestock Bloating None

Source: USDA, NRCS, PLANTS Database, plants.usda.gov.
National Plant Data Center, Baton Rouge, LA 70874-4490 USA