A cold tolerant vegetable.
Cold hardy vegetables are perfect for the cool weather of early spring and a good one to think about planting. Semi–hardy vegetables can withstand repeated light frost of air temperatures in the range of 28 to 32 degrees.
Cold hardy vegetables can survive hard frosts (about 25°F to 28°F) with some varieties tolerating temperatures into the teens or below. All taste better when allowed to mature during cool weather.