RC Big Rock Switchgrass

RC Big Rock Switchgrass is a new and improved native upland switchgrass bred from Cave-In-Rock genetics. Commonly reaching 7–9 feet under proper conditions, it creates dense vertical structure ideal for screening, deer bedding, and winter thermal cover. It matures slightly later than Cave-In-Rock and is selected for strong stem strength and dependable winter standability. This variety is well adapted across much of the Midwest, Northeast, and Central United States. It performs best in full sun and well-drained soils, but it has done very well in areas with partial shade and seasonal flooding.

Highlights:

• New and improved upland selection from Cave-In-Rock genetics
• Typically reaches 7–9 feet in ideal conditions
• Designed for screening and wildlife cover
• Has grown in areas receiving as little as 50% sunlight
• Handles moist soils and moderate seasonal flooding

Seeding Rate: 7–10 lbs per acre
Use 10 lbs per acre for thicker screening. Use 7-8 lbs per acre for bedding cover.
Seed Type: Warm-Season Perennial Native Grass
Planting Time: Winter (Frost Seeding) through Mid Summer (with adequate moisture)
Planting Method: Frost Seed, Drill, or Broadcast
Sunlight: Full Sun (Best) – Tolerates up to 50% shade

Frost Seeding Note: Increase seeding rate by approximately 25%.

For more information on preparation, planting, spraying, and fertilizing, visit our Seed Information page.