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Helianthus annuus

Sunflower is a warm season broadleaf that is used as a cover crop - either as a "break crop" in certain crop rotations; or to add diversity to mixtures.

Sunflower has certain benefits as a "green manure":

  • Produces high levels of organic matter.

  • On termination of the crop, a dense moisture-conserving mat is formed. 

  • Forms a deep, extensive root system that hosts mycorrhizal fungi. 

  • The broad leaves and quick establishment assists in smothering weeds.

  • Attracts pollinators.

  • Used as part of "insect havens" - attracting insect predators.

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