• Fast Facts

    Extreme N Production.

    Produces significant biomass above and below ground.

    Tolerates extreme heat and drought conditions.

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    Sunn Hemp is a tropical warm season legume. It grows rapidly (5,000lb/ac biomass common) and sequesters significant amounts of nitrogen. (Note the size of nodules in the pictures).   Sunn Hemp can also be grazed. It is known for thriving in high heat and low rainfall conditions.  Sunn Hemp is an excellent cover crop planted after wheat harvest.  In addition it winterkills making spring management easy!

    Type: Nitrogen Fixer (Legume)

    Planting Timing:  June 1- 8 weeks before killing frost.

    Seeding Rate:

    • Precision: 9
    • Drill: 15
    • Broadcast: not recommended

    Planting Depth:  ½ – 1in.

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    Yes – Graphex SA™ for Cover Crops

Benefits of Sunn Hemp

Nitrogen Fixer: Excellent
Nutrient Scavenger: Fair
Soil Builder: Excellent
Compaction Relief

Topsoil: Excellent
Subsoil: Fair

Erosion Control: Fair
Residue Decomposition: Fair
Weed Suppression: Good
Grazing: Good
Forage Value: Fair
Attracts Beneficial Insects: Poor


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