I have never had good luck growing broccoli in TN, I want to plant broccoli this year. I have tried planting it in the spring soon as plants are available at Farmers Co-op. We often have 80 degree weather in Feb then snow a week later then more warm weather in March then more snow before it finally gets warm and stays warm late April. My broccoli always goes to seed. I planted broccoli a few times in Sept but we have the same weather in fall 80 degrees until late December and lots of cold with it. This year we had no cold weather in the fall it was 80 degrees on December 30th. Now winter is finally here 15 degrees at night and 40 during the day.
What is the trick to growing broccoli and how cold can it get before it kills broccoli?