Cabbage Cold Hardiness

Question

I have several heads of cabbage in the garden that are not quite fully developed (ranging 3-5 inches in diameter). We are expecting 2 hours at 30 degrees tonight and 5 hours as low as 25 degrees tomorrow night. Will the plants survive or should I harvest them now and be happy with the smaller heads?

Answer 1

Cabbage is very cold hardy, surviving temps as low as 15-20 degrees F. However, if you are worried about your plants or if temps fall below this, you could always add additional protection with cold frames/tunnels and mulching.