whats in the cold frame

A couple weeks ago, I covered my cold frame with a tarp to protect against the snow of its first winter. Today I peeked under. Everything looks good. Spinach, lettuce, escarole, and broccoli. Temperatures have been about 32-35 inside (on a remote thermometer) even when its very cold outside. The plants are still small and aren't growing any more. I'm hoping they'll survive the winter and grow again when sun and temp's increase. We'll see. I have to remember to bring a bucket of water out - they tend to dry out.