What do you mean they'll die if they freeze???
I just heard that if a bulb freezes, it'll die. Um, pardon, but if a tulip is planted 4-6" down in the fall here in NH, the ground is GOING to freeze over the winter. I've never had any issues with bulbs not coming up after planting in the fall, and am curious about this note.
My other question, on the same line is: If the ground is still workable, why couldn't I still stick them in the ground now? We've had very mild temps until a couple days ago.