Twoflowered Rush (Biglumis)

The Twoflowered Rush (Biglumis) is generally described as a perennial graminoid. This is native to the U.S. (United States) has its most active growth period in the summer and fall . The greatest bloom is usually observed in the summer, with fruit and seed production starting in the summer and continuing until fall. Leaves are not retained year to year. The Twoflowered Rush (Biglumis) has a moderate life span relative to most other plant species and a moderate growth rate. At maturity, the typical Twoflowered Rush (Biglumis) will reach up to 1 foot high, with a maximum height at 20 years of 0 inches.

The Twoflowered Rush (Biglumis) is not commonly available from nurseries, garden stores and other plant dealers and distributors. It can be propagated by bare root, seed, sprigs. It has a slow ability to spread through seed production and the seedlings have low vigor. Note that cold stratification is not required for seed germination and the plant cannot survive exposure to temperatures below -38°F. has low tolerance to drought and restricted water conditions.

Plant Basics
Growth Rate Moderate
General Type Graminoid
Growth Period Summer, Fall
Growth Duration Perennial
Lifespan Moderate
Plant Nativity Native to U.S.
Commercial Availability No Known Source
Physical Characteristics
Bloom Period Summer
Displays Fall Colors No
Shape/Growth Form Rhizomatous
Drought Tolerance Low
Shade Tolerance Intermediate
Height When Mature 1
Vegetative Spread Slow
Flower Color Purple
Flower Conspicuousness No
Fruit/Seed Abundance Low
Fruit/Seed Seasonality Summer Fall
Seed Spread Rate Slow
Gardening Characteristics
Propagations (Ways to Grow) Bare Root, Seed, Sprigs
Moisture Requirements High
Cold Stratification Required No
Minimum Temperature -38
Soil Depth for Roots 8
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 5–7.5 pH
Precipitation Range 12–12 inches/yr
Planting Density 4800–11000 indiv./acre
Soil Textures Coarse, Fine, Medium
Soil Depth for Roots 8
Minimum Frost-Free Days 80 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