I think the new ryegrass will be mostly OK; the gradual cooling off is better than sudden cold; a bit of snow will protect it to some degree.
Let us know what happens, OK?
In fact--good question--how much will snow protect it? What is you soil temperature? Is the soil temp higher under the snow? Under thick turf? Does any warmth come up from the deeper layers of earth?
Last edited by RigglePLC; 01-21-2013 at 08:35 PM.