Will Frost Kill Radishes

Radishes can tolerate frost and temps down to the mid-20s, but may be damaged or killed by a sustained hard freeze — in particular in the late fall when they won’t have a chance to recover as winter sets in.

Do I need to cover radishes for frost?

Plants that can withstand light frost: These include artichokes, bok choy, Chinese cabbage, cauliflower, celery, collards, leaf lettuce, mustard, peas, potatoes, and radishes.

Should I cover my radishes?

Protect Plants With Row Covers To avoid destructive root maggots, rotate your radish plantings at least every three years and don’t plant radish seeds where Brassica crops have previously grown. Working wood ashes into your planting soil may help deter root maggots, too.