We use this mix on our farm in Albion, Maine. The mix contains field peas, oats, and hairy vetch. Designed for spring sowing, but it may be sown anytime early spring through late summer. For green manure, incorporate into the soil anytime your garden schedule suggests. Mid and late summer sowings may be left to winter over and the vetch allowed to regrow some in the spring. Inoculate with Garden Combination Inoculant (#7531) or Pea, Vetch, and Lentil Inoculant (#7534) for best performance. USDA Certified Organic.