We live in the Milwaukee, Wisconsin area. I have heard of dormant seeding before, but I have a question about it. The temperatures are starting to get colder around here with highs in the lower 50s and lows in the lower 40s. Is it acceptable to hydroseed a lawn now with a 40%- 50% Bluegrass mix. Will these seeds sprout in the spring? Or, is it a better idea to wait until the spring?