Can broccoli&cauliflower survive freezing temperatures in a garden?
Both cauliflower and broccoli may survive a light frost, but not much more, especially if the plants are young. Broccoli is more tolerant of cold temperatures than cauliflower, but it still does not do well in freezing temperatures. It is best to cover your non-harvested plants if the temperature is expected to go below freezing.Source:Floridata: Brassica Oleracea Var.