Cover Crop / Warm season

Sorghum-Sudangrass Cover Crop

Warm fallow beds where high biomass can be cut before planting.

Grown for quick summer biomass and soil cover.

Seed spacing and maturity

Days to maturity
70
Germination temperature
65-90F
Seed depth
0.5 inches
Spacing
2 inches
Row spacing
8 inches
Start method
Direct sow

Frost-date timing

Direct sow
14 days after last frost

Action plan

Can I plant this now?
Use your local last-frost, first-frost, and soil-temperature checks before treating this crop as plantable today.
Start indoors or direct sow?
Direct sow into the final bed when the soil temperature, seed depth, and moisture are ready.
How much space?
2 inches in-row spacing, 8 inches between rows, and 0.5 inch seed depth.
Best companions?
Use crop-family rotation first, then pair with compatible timing, spacing, and canopy size rather than relying on a simple companion chart.
Common failure modes?
Mow before plants become woody or set seed. Moderate water to establish dense summer biomass. Warm, well-drained soil with adequate nitrogen for growth.

Growing profile

Sun
Full sun
Water
Moderate water to establish dense summer biomass.
Soil
Warm, well-drained soil with adequate nitrogen for growth.
Watch
Mow before plants become woody or set seed.
  • cover-crop
  • grass
  • warm-season
  • biomass

Browse context

Related varieties

Source: Wisconsin Extension cover crops and green manures