Dont know about there, but here ryegrass(both annual and perennial types) lives through the winter. Deer do not like it, but it will grow anywhere. It is included in several "throw and grow" food plot mixes to make the hunter feel successful, because the alleged "food plot" will at least be green.

Winter rye(cereal rye) is a small grain, similar to oats or winter wheat. It is the most cold tolerant grain. It can survive -30 and germinate at 33 degrees. It is an excellent soil builder with a very fibrous root system. It also scavenges for nitrogen that would be otherwise lost from previous crops.

It will do decent broadcast with no soil prep other than some exposed soil. I have broadcast rye into standing soybeans prior to leaf drop to have a food plot even after the beans have been harvested. I also use it often on first year food plots as a cover crop while the pH is rising for more suitable crops and to help increase organic matter. It does surprisingly well on poor soil, tolerates a Ph down to 4.5

It also has allelopathic properties(keeps many weeds form germinating). More info on that than you want here...(http://www.colostate.edu/Depts/Entom...998/pester.htm)

Sounds like a miracle plant? Close, but at least around here deer like oats or wheat better.