Cabbage

There is information on the Cabbage family and cabbage as a Biennial from the Seed TOPIC in the Food section of Troubled Times.  

Tolerates full shade; well-drained but damp, rich soil; alkaline(high pH) soil; long growing season; tolerates frost and wind. Cabbage is a cold weather crop. It loves the cool temperatures of Autumn and early Spring. It will only go to seed when the climate gets warmer, in late Spring or early Summer.

Roger