★ #1 Nitrogen Cover Crop

Best Hairy Vetch Seed: The Highest-Fixing Annual Cover Crop for Free Nitrogen & Weed Suppression

Updated April 2026 10 Products Compared By the Old Cobblers Farm Team

Old Cobblers Farm™ Wicked Tuff Turf Vetch

by Wicked Tuff Turf — Littleton, New Hampshire
Hairy Vetch
Vicia villosa
"The annual nitrogen factory. Hairy Vetch fixes more nitrogen than any other annual cover crop — 100-200 lbs per acre. Pair with Winter Rye for the most proven two-species cover crop system in North American agriculture."
Fall emergence: 7-14
Establishment
Zones 3-8
Hardiness Range
Very Low
Maintenance
Legume
Category
🌿

100-200 lbs Free Nitrogen

🤝

Perfect Winter Rye Partner

🛡️

Dense Weed Suppression

❄️

Overwinters to Zone 3

🌱

Fall-Plant, Spring-Benefit

🌾

Massive Biomass Production

📅

Fall Planting Only (North)

🇺🇸

Trusted by 20,000+ Growers

SpeciesHairy Vetch (Vicia villosa)
Growth HabitWinter annual vine. 3-6 foot trailing/climbing stems. Tendrils. Dense mat-forming.
Root Depth2-4 inches with N-fixing nodules
EstablishmentFall emergence: 7-14 days. Overwinter: low rosette. Spring: explosive vine growth. Bloom: May-June. Death: summer.
Hardiness Zones3-8
MaintenanceVery Low
CategoryLegume
Available Sizes1 lb | 5 lb | 10 lb | 25 lb

What We Love

  • Highest N fixation of any annual cover crop (100-200 lbs)
  • #1 partner for Winter Rye — proven two-species system
  • Dense mat-forming growth suppresses spring weeds
  • Overwinters to Zone 3 — extremely cold-hardy annual
  • Massive biomass adds organic matter and surface mulch

Worth Noting

  • Fall planting only in northern zones — no spring option
  • Needs support structure (Rye) — flops without something to climb
Buy on Old Cobblers Farm →
Available in 1 lb | 5 lb | 10 lb | 25 lb
The Competition

Hairy Vetch

by Outsidepride
99%/90%, Nitro-Coat
Purity / Germ
Sizes10 lb
Price$49.99

Soil-Building Mix

by Org. Growers
Mix, Raw
Purity / Germ
Sizes1 lb
Price$14.42

Vetch/Rye Mix

by Org. Growers
Mix, Raw
Purity / Germ
Sizes50 lb
Price$115.00

Hairy Vetch

by Hancock Seed
98%/85%, Inoculated
Purity / Germ
Sizes5, 50 lb
Price$145.00

Hairy Vetch

by Welter Seed
99.5%/90%, Raw
Purity / Germ
Sizes50 lb
Price$125.00

Hairy Vetch

by Deer Creek Seed
98%/85%, Raw
Purity / Germ
Sizes5 lb
Price$24.99

Winter Soil Fix

by Real World
Mix, Inoculated
Purity / Germ
Sizes10 lb
Price$45.00

Pure Vetch

by Barenbrug
Forage Grade, Raw
Purity / Germ
Sizes5 lb
Price$29.99

Winter-Greens Mix

by Whitetail Inst.
Mix, Inoculated
Purity / Germ
Sizes3 lb
Price$44.84

Hairy Vetch

by Mountain View
98%/85%, Raw
Purity / Germ
Sizes50 lb
Price$155.00
Feature Old Cobblers Farm™ Wicked Tuff Turf Vetch Hairy Vetch Soil-Building Mix Vetch/Rye Mix Hairy Vetch Hairy Vetch Hairy Vetch Winter Soil Fix Pure Vetch Winter-Greens Mix Hairy Vetch
Purity / Germ 99%/90%, Nitro-Coat Mix, Raw Mix, Raw 98%/85%, Inoculated 99.5%/90%, Raw 98%/85%, Raw Mix, Inoculated Forage Grade, Raw Mix, Inoculated 98%/85%, Raw
Sizes 1 lb | 5 lb | 10 lb | 25 lb 10 lb 1 lb 50 lb 5, 50 lb 50 lb 5 lb 10 lb 5 lb 3 lb 50 lb
Price $49.99 $14.42 $115.00 $145.00 $125.00 $24.99 $45.00 $29.99 $44.84 $155.00
Brand Old Cobblers Farm Outsidepride Org. Growers Org. Growers Hancock Seed Welter Seed Deer Creek Seed Real World Barenbrug Whitetail Inst. Mountain View

Frequently Asked Questions

  • How long does it take for the seed to germinate?

    Germination typically occurs within 7-14 days under optimal conditions with consistent moisture and temperatures between 60-75°F.

  • What is the best time of year to plant this grass seed?

    The ideal planting times are early fall (late August to mid-October) or spring (mid-April to early June) when soil temperatures are favorable for germination.

  • What do the numbers on the seed tag mean?

    The seed tag shows purity percentage (amount of pure seed), germination rate (percentage that will sprout), weed seed content, and other crop or inert matter. Higher purity and germination percentages indicate better quality seed.

  • What is the recommended seeding rate per 1,000 square feet?

    For new lawns, apply 3-4 pounds per 1,000 square feet. For overseeding existing lawns, use 2-3 pounds per 1,000 square feet.

  • Is it better to use a single species or a seed mix?

    A single species like Kentucky Bluegrass provides uniformity in color and texture, while a mix offers better disease resistance and adaptability to varying conditions. Your choice depends on your priorities for appearance versus resilience.