Siberian is super hardy and enjoys colder weather. Excellent taste.
How to Save Seeds
Most kales are part of the Brassica oleracea family which includes broccoli, cabbage, kale, and brussel sprouts so separate by 1 mile . Siberian kale is an exception it is not part of this family it is a Brassica Napa so it will cross with rutabagas so keep this in mind when planting. Mulch kale to last over winter. Kale will go to seed following year; collect dry seed pods.