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Hairy Vetch is a hardy annual or biennial legume known for its trailing vines and clusters of small purple flowers that bloom in late spring and early summer. Thriving in full sun to partial shade and a variety of soil types, this nitrogen-fixing plant is often used as a cover crop to improve soil health and prevent erosion. Hairy Vetch grows vigorously, climbing up to 3 feet in height, and attracts bees and other beneficial pollinators. Whether used in a garden for its soil-building benefits or for its attractive blooms, Hairy Vetch is an excellent choice for sustainable gardening.
NAME: Hairy Vetch (Vicia villosa)
VARIETY: Hairy Vetch
DAYS TO MATURITY: 70 – 90 days
POLLINATION: Open Pollinated
TYPE: Annual or Biennial
HARDINESS ZONE: Zones 3 – 10
SUNLIGHT: Full Sun – Partial Shade
SOIL: Well-draining, fertile soil with a pH 6.0-7.5
PLANT HEIGHT: 1 – 3 feet
SPACING: 6 – 12 inches apart
TEMP: 40 – 90ºF
These seeds do not require stratification, but due to their hard seed coats, scarification can be helpful to improve germination rates.
To scarify seeds, lightly rub seeds between sandpaper to break the hard seed coat, which enhances water absorption and speeds up germination.
To learn more about Stratification, click here!
It is generally not recommended to start Hairy Vetch seeds indoors, as they establish best when sown directly outdoors.
If starting indoors, begin about 3-4 weeks before the last frost.
After scarification, sow seeds 1/4-1/2 inch deep in seed trays filled with a well-draining mix.
Maintain a soil temperature of 65-70°F. Germination typically occurs within 7-14 days.
Thin seedlings to one per cell and gradually introduce them to outdoor conditions for about a week before transplanting.
Direct sowing is recommended for Hairy Vetch, especially as a cover crop.
In temperate climates, sow seeds in late summer for winter growth, or early spring if using it as a spring cover crop.
Broadcast seeds over the soil and lightly press them in, ensuring they are covered by no more than 1 inch of soil.
Keep the soil moist until germination, which generally occurs within 7-14 days.
Light: Prefers full sun but can tolerate partial shade.
Soil: Thrives in well-draining soils and is adaptable to sandy or loamy textures. Avoid waterlogged soils.
Water: Water regularly until established. Once mature, Hairy Vetch is drought-tolerant but performs best with moderate moisture.
Fertilization: Not required; as a legume, Hairy Vetch naturally fixes nitrogen, enriching the soil.
Pruning: Mow or trim back the plants at the flowering stage to prevent seed dispersal if you don’t want the plant to reseed.
