An excellent catch crop as it has an extensive root system and is very efficient at taking up soluble nutrients left by previous crops. Winter rye provides a large amount of organic matter and has allelopathic effects on weeds. Very hardy and winters over consistently, germinating and growing at 40˚F and surviving down to -33˚F. Turn under in the spring when the winter rye is 8"-12" tall or 2 weeks before planting the next crop. Seed from mid-August to mid-October alone or with hairy vetch at 90-160#/acre or 4#/1000 sq. ft.