Squash tips

I froze some chopped up Crown Prince squash raw (my own garden one actually). Opinion on the internet was divided about whether it would work or not, or whether it should be cooked before freezing. I roasted it from frozen and it was fine. Thought it might be useful for some of the members to know.

Also, very impressed with the quality of the celeriac and swedes. Where can you get an English organic celeriac as late as this and how on earth much would it cost?
Judy