Quick Answer
Warm-season grasses thrive in full sun and well-drained soils, typically requiring at least 30 days of temperatures above 64 degrees Fahrenheit for optimal growth. Moderate precipitation is also crucial, with average annual rainfall of 20-40 inches supporting healthy growth. These conditions are often found in the south-central to southwestern United States.
Soil and Moisture Requirements
Warm-season grasses, such as big bluestem and switchgrass, perform best on fertile soils with a pH between 6.0 and 7.5. These grasses are commonly found in areas with low to moderate levels of soil erosion and are often associated with native prairies and open woodlands. When planting new species, incorporate a mix of grasses, forbs, and shrubs to create a diverse ecosystem.
Climate and Temperature Requirements
In terms of climate and temperature, warm-season grasses are most productive in areas with long growing seasons, typically 150-200 days. This allows for a full growing season, with the grasses beginning growth in late spring and continuing through early fall. Average temperatures above 64 degrees Fahrenheit, with minimal winter damage from extreme cold, support the growth of these grasses.
Planting and Management Strategies
To promote warm-season grass growth and create a thriving habitat for upland birds, utilize CRP (Conservation Reserve Program) planting strategies that incorporate native grass species. For optimal growth, plant warm-season grasses in early spring or late summer, allowing for a full growing season before first frost. Regular mowing, as needed, can also encourage healthy growth and promote the development of a diverse ecosystem.
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