La Crosse Seed

Sunn Hemp

SHARE

Sunn hemp is a warm season legume, upright and quick in its growth habit. Sunn hemp needs 60°F soil temps before it can planted and will kill at the first signs of frost. Higher seeding rates of sunn hemp will help with weed suppression.

Most popular related searches

Non-Forage Benefits (5=Excellent):

  • Compaction Alleviation: 2
  • Weed Suppression: 4
  • Biomass Production: 5
  • Erosion Control: 3
  • Disease/Pest Control: 3
  • Pollinator/Beneficials: 4
  • P & K Cycling: 3
  • Ease of Establishment: 3
  • Nitrogen Fixer/Scavenger: Fixer

Nutritional Value:

  • Crude Protein: 25
  • NEL¹ Mcal/lb.: Varies Greatly
  • ADF%²: Varies Greatly
  • NDF%³: Varies Greatly
  • TDN: Varies Greatly
  • DM Tons/Acre: 1-5
  • Days to First Harvest: 40-45
  • Days to Next Harvest: –

Ranking (Good, Better, Best):

  • Graze: Better
  • Baleage: Good
  • Chop: Best

Planting Time:

  • July-Sept.

Seeding Rate:

  • Mono (lbs./acre): 15
  • Mix (lbs./acre): 5-8
  • Forage (lbs./acre): 5-15

Seeding Info:

  • Carbon/Nitrogen Ratio (C:N): 18:1-29:1
  • Seeding Depth (in./with drill): 1/2-1
  • Seeds/lb.: 15,000
  • Bulk Density (lbs./ft.³): –
  • Aerial Application Rate: NR
  • Germination Soil Temp.: 65 F
  • USDA Hardiness Zone: Frost
  • Days to Emergence: 3-7

Management:

  • Prefers soil pH levels above 6 (6–7)
  • Kills at first frost, or control by mowing or herbicide at first flower for maximum benefit
  • Residue (green manure) should be incorporated while still green
  • In far southern areas (below 28° latitude), sunn hemp will produce seed which can be toxic to livestock

Our Forage First® brand forage legumes include red clover, intermediate, ladino and alsike clover, and birdsfoot trefoil. Our forage legume family offers improved and elite varieties known for rapid growth, high forage quality, winter hardiness, disease resistance and more. Many of these legumes form foundations to our premium Forage First® pasture mixes.