How Long Does It Take Winter Rye To Germinate?

How Long Does It Take Winter Rye To Germinate? Annual ryegrass will germinate in 7-10 days with sufficient soil moisture. Dry soil conditions will delay germination. Ideally annual ryegrass needs 60 days of growth before a hard killing frost. At what temperature does winter rye germinate? Rye is the most winter-hardy of all cereal grains,