Cole Crops refer to early season cold hardy vegetables that include cabbages, cauliflowers, broccoli, brussel sprouts, lettuce and chard.
In the deep south, cole crops need to be planted by the first of March. In the mid-south (Arkansas and Oklahoma) they should be in the ground by the middle of March. However this year, we have had such a cool, wet March so far the ground has been too wet to plant. I think that gardens will be able to plant their cole crops later this year.
What happens with cole crops is when the temperatures heat up, the plants just don’t fo as well. So planting early and growing cooler is better.
Farther north, cole crops can be planted on up into April.