On Sun, 25 Apr 2021 18:37:10 -0000 (UTC)
bob prohaska wrote:

I'd like to collect some common vetch seeds from roadside patches
to see if they're useful as groundcover. In this (very dry) year
the bloom is good, which augurs well for drought tolerance.
snip

Crown vetch was commonly used as a roadside cover... It was a bad
mistake, it is highly invasive. See:

https://html.duckduckgo.com/html/?q=...invasive&kd=-1

There are a lot of "vetches". Just be careful collecting along the
roadside and which one you're getting

That said you can just order/buy Common Vetch (Vicia sativa) seed:

https://html.duckduckgo.com/html/?q=...h%20seed&kd=-1

--
Leon Fisk
Grand Rapids MI