Autumn Bluegrass (Autumnalis)

The Autumn Bluegrass (Autumnalis) is generally described as a perennial graminoid. This is native to the U.S. (United States) has its most active growth period in the spring and summer . The greatest bloom is usually observed in the late spring, with fruit and seed production starting in the summer and continuing until fall. Leaves are not retained year to year. The Autumn Bluegrass (Autumnalis) has a moderate life span relative to most other plant species and a moderate growth rate. At maturity, the typical Autumn Bluegrass (Autumnalis) will reach up to 1.5 foot high, with a maximum height at 20 years of 0 inches.

The Autumn Bluegrass (Autumnalis) is not commonly available from nurseries, garden stores and other plant dealers and distributors. It can be propagated by seed, sprigs. It has a slow ability to spread through seed production and the seedlings have medium vigor. Note that cold stratification is not required for seed germination and the plant cannot survive exposure to temperatures below -8°F. has low tolerance to drought and restricted water conditions.

Plant Basics
Growth Rate Moderate
General Type Graminoid
Growth Period Spring, Summer
Growth Duration Perennial
Lifespan Moderate
Plant Nativity Native to U.S.
Commercial Availability No Known Source
Physical Characteristics
Bloom Period Late Spring
Displays Fall Colors No
Shape/Growth Form Bunch
Drought Tolerance Low
Shade Tolerance Intermediate
Height When Mature 1.5
Vegetative Spread None
Flower Color Green
Flower Conspicuousness No
Fruit/Seed Abundance Low
Fruit/Seed Seasonality Summer Fall
Seed Spread Rate Slow
Gardening Characteristics
Propagations (Ways to Grow) Seed, Sprigs
Moisture Requirements Medium
Cold Stratification Required No
Minimum Temperature -8
Soil Depth for Roots 10
Toxic to Nearby Plants No
Toxic to Livestock No
After-Harvest Regrowth Rate Slow
After-Harvest Resprout Ability No
Responds to Coppicing No
Growth Requirements
pH Range 5.8–6.9 pH
Precipitation Range 36–36 inches/yr
Planting Density 11000–19000 indiv./acre
Soil Textures Coarse, Medium
Soil Depth for Roots 10
Minimum Frost-Free Days 180 day(s)
Salinity Tolerance None
CaCO3 Tolerance Medium
Sustainability & Use
Leaf Retention No
Palatability Low
Fire Resistant No
Causes Livestock Bloating None

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