Hairy Vetch Seeds - (Vicia villosa)

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V1498 1 LB
  • Hairy Vetch leaves and flowers - (Vicia villosa)
  • Hairy Vetch flowers - (Vicia villosa)
  • Hairy Vetch plant with flowers - (Vicia villosa)
  • Hairy Vetch plant - (Vicia villosa)
  • Hairy Vetch Seeds - (Vicia villosa)

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Hairy Vetch

An annual legume used to fix nitrogen, suppress weeds, loosen and condition topsoil and reduce erosion while improving soil organic matter and carbon content.

Hairy vetch is almost unsurpassed as a spring cover crop for mulch and root mass production, along with nitrogen fixing. Widely adapted and winter hardy through Zone 4, vetch grows a bit more slowly in fall but its roots continue growing through winter if not killed by mowing or weed whacking. If left to overwinter, vetch will grow vigorously in early spring creating a very abundant and viney biomass if left to grow.

Vetch’s benefits begin with the amount of nitrogen it can produce and fix into the soil, sometime enough for a following crop of corn without any additional nitrogen fertilizer. Its extensive root mass increases winter and spring soil moisture retention as well as aeration, soil structure, organic matter and increased carbon content. As the roots decompose they increase biological activity and beneficial insect populations just above and below the soil surface.

Hairy vetch improves topsoil tilth, creating a looser and more friable soil structure, but doesn’t increase long term organic matter due its rapid and total decomposition, which feeds the soil in the short term. It scavenges excess or unavailable phosphorus, storing and releasing it as the plant matter decays.

The very vigorous spring growth out-competes weeds by filling in and shading out bare soil, while also excluding nutrients from weed seeds and providing a weak allelopathic effect which hinders the germination of weed seeds. Cool season weed control is greatly enhanced when planted with cereal rye or oats.

Hairy vetch is more drought tolerant than other vetches once established and when over-wintered.

Because of its high nitrogen production, vigorous growth, tolerance of diverse soil conditions and low soil fertility needs hairy vetch is an important tool in the organic farmer and gardener’s toolbox for both fall and winter as well as spring cover crops.

Growing Instructions

Lightly broadcast seeds and work into the top half inch of moist soil, or cover with 1/2 inch of mulch or compost. Water to equivalent of 1 inch of rainfall per week until seedlings become established. Do not fertilize as this delays the nitrogen fixing action of the legumes.

Planting Rates

  • 8 oz will seed approximately 400 sq. feet
  • 1 lb will seed approximately 800 sq. feet

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