In this year’s Ohio State annual ryegrass winter injury trial, Winterhawk Annual Ryegrass showed a dominant winter hardiness rating over the competition. Since winter hardiness is one of the primary concerns as to whether an annual ryegrass variety works well as a cover crop, this proves to be impressive data. While there are many annual ryegrass varieties on the market, it's important to know that you are purchasing one with proven winter survival. Click the link below to review the results. 

Ohio State Trial Data