When it comes to obtaining fast growth and substantial biomass from cool season legumes, hairy vetch stands out. This was evident in our recent trial of Patagonia Inta hairy vetch. Planted on December 9, 2023, in the Southeastern United States, we set up our trial using 18-inch fabric tubes to facilitate easy extraction and observation of both top and root growth patterns. Over the course of the 175-day trial period, we made several noteworthy observations.