Hale Habitat & Seed
Switchgrass (Cave-in-Rock)
Switchgrass (Cave-in-Rock)
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Cave-in-Rock Switchgrass (Panicum virgatum) is a warm-season, perennial native grass widely used for erosion control, biofuel production, and wildlife habitat. It provides excellent cover for birds and small mammals, as well as nesting sites for ground-nesting birds like quail and pheasants. Its deep root system also improves soil health and water infiltration.
Summary of Wildlife Benefits
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Provides dense cover for nesting birds, small mammals, and fawns.
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Seeds are a food source for birds like quail, pheasants, and sparrows.
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Improves soil health and reduces erosion, benefiting overall ecosystem stability.
Cave-in-Rock Switchgrass is a hardy, low-maintenance native grass that enhances wildlife habitat and supports conservation efforts.
Key Characteristics of Cave-in-Rock Switchgrass
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Planting Time:
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Late spring to early summer (May to June) when soil temperatures reach 60°F or higher.
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Planting Depth:
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¼ to ½ inch for optimal germination and establishment.
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Planting Rates:
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Broadcast: 8-10 lbs of pure live seed (PLS) per acre.
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Drilling: 5-7 lbs of PLS per acre.
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Days to Maturity:
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Establishes in 1-2 years, reaching full maturity by the third growing season.
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Height at Maturity:
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3-6 feet tall, depending on soil and growing conditions.
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Drought Tolerance:
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High; deep root system allows it to thrive in dry conditions.
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Saturated Soil Tolerance:
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Moderate; can tolerate occasional flooding but not prolonged waterlogged conditions.
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Shade Tolerance:
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Low; prefers full sun for optimal growth.
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Fertilization Guidelines
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Nitrogen (N):
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Apply 50-70 lbs per acre at planting, with additional applications of 30-50 lbs per acre in subsequent years if needed for biomass production.
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Phosphorus (P) and Potassium (K):
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Apply based on soil test recommendations. Typical rates range from 20-40 lbs per acre for P and K.
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pH Range:
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Prefers a soil pH of 5.5-7.5 for optimal growth.
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Herbicide Use
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Switchgrass is slow to establish and may require weed control during the first 1-2 years.
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Pre-Emergent Herbicides:
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Use atrazine or imazapic (labeled for switchgrass) to control annual grasses and broadleaf weeds during establishment.
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Post-Emergent Herbicides:
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2,4-D can be used for broadleaf weed control. Avoid herbicide use once switchgrass is established to protect wildlife habitat.
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Caution: Follow label instructions and avoid herbicides that may harm non-target species.
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