32 DEGREES Thirty two degrees is a gardener’s bane on either scale. On the Fahrenheit scale, thirty two degrees is the temperature at which water freezes. Most flowers and vegetables planted for human consumption and enjoyment do not experience growth below forty five degrees F. and many will perish in the range between thirty two and forty. There are a few hardy plants, arugula, carrot and pansy among them, which can tolerate a few degrees of frost without harm. Let the potato ...