What it is
Hairy Vetch (Vicia villosa) is in the Fabaceae (Legume) family. A cold-hardy legume that fixes serious nitrogen over winter and forms a weed-smothering mat.
How to grow it
It wants full sun, water it low, and give it tolerant soil. Target a soil pH around 6.0–7.0. Space plants about Broadcast apart. Expect roughly Fall sow. Cool-season annual.
How it's used
Hairy Vetch is used: cover crop.
🔎 How to identify it
- Many small paired leaflets
- Tendrils
- Purple flower clusters
Not for eating
How to grow & propagate hairy vetch
Everything I've worked out about starting this one, keeping it alive through a Texas year, and turning one plant into many — free.
How to propagate hairy vetch
Legumes resent transplanting — that taproot wants to go straight down — so sow them right where they'll grow once the soil has warmed. Soak hard-coated seed overnight to speed germination. As a bonus, this whole family pulls nitrogen out of the air and banks it in the soil, so wherever you grow them you're feeding next season's crop.
Growing hairy vetch in Texas
Give it full sun and tolerant soil. Match the spot to the plant and most of the battle is already won.
This is a cool-season crop. On the Texas Gulf Coast that means your real windows are fall and late winter, not summer — sow as the heat breaks in September–October and again in late winter, and you'll harvest through our mild winters while the rest of the country is frozen out.
Keep moisture even, especially while it's young — deep, less-frequent soaks build better roots than a daily sprinkle.
Harvesting
Figure on roughly fall sow before you're harvesting.
Making more for free
If you want more, let your healthiest plants mature fully and collect the seed once it's dry on the plant — then store it somewhere cool, dark, and dry until next season.
Part of the free Texas Roots plant database, compiled by Jordan Polasek from his greenhouse in El Campo, Texas. Free to read and share. If it helped, the best thanks is to grow something.