Needlegrass Rush (Roemerianus)

The Needlegrass Rush (Roemerianus) 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 . The greatest bloom is usually observed in the spring, with fruit and seed production starting in the summer and continuing until fall. Leaves are not retained year to year. The Needlegrass Rush (Roemerianus) has a long life span relative to most other plant species and a moderate growth rate. At maturity, the typical Needlegrass Rush (Roemerianus) will reach up to 4.9 feet high, with a maximum height at 20 years of 0 inches.

The Needlegrass Rush (Roemerianus) is easily found in nurseries, garden stores and other plant dealers and distributors. It can be propagated by seed, sprigs. It has a rapid 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 17°F. has none tolerance to drought and restricted water conditions.

Plant Basics
Growth Rate Moderate
General Type Graminoid
Growth Period Spring
Growth Duration Perennial
Lifespan Long
Plant Nativity Native to U.S.
Commercial Availability Routinely Available
Physical Characteristics
Bloom Period Spring
Displays Fall Colors No
Shape/Growth Form Bunch
Drought Tolerance None
Shade Tolerance Intolerant
Height When Mature 4.9
Vegetative Spread None
Flower Color Green
Flower Conspicuousness No
Fruit/Seed Abundance Medium
Fruit/Seed Seasonality Summer Fall
Seed Spread Rate Rapid
Gardening Characteristics
Propagations (Ways to Grow) Seed, Sprigs
Moisture Requirements High
Cold Stratification Required No
Minimum Temperature 17
Soil Depth for Roots 14
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 4–7 pH
Precipitation Range 40–40 inches/yr
Planting Density 3450–11000 indiv./acre
Soil Textures Fine, Medium
Soil Depth for Roots 14
Minimum Frost-Free Days 200 day(s)
Salinity Tolerance High
CaCO3 Tolerance High
Sustainability & Use
Leaf Retention No
Fire Resistant No
Causes Livestock Bloating None

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