Hi everyone I am new to raising peas and I must say that I love love love them.I have 5 dave and the beatles, but I have sadly lost 2 to illness. I live in Nova Scotia, We get very cold here in the winter, My boys live in our barn it's unheated. They are 4 months old and are sucessfully freeranging. We have lots of chickens ducks and bantums that seem to winter very well but I am concerned about the peas. Anywords of wisdom? Should they have a heat source or are they winter hardy?