Members of this family include:
Brassicas prefer a moist, firm soil (they do exceptionally well in my clay soil, and cool weather). They are heavy feeders so plant in an area precluded by a crop of peas or beans that have fixed nitrogen in the soil. Brassicas make up a large portion of your garden so it is important to keep track of plantings and rotations to avoid diseases.
Here is a picture of the Brassicas family that lives on my beautiful, sustainable farm.
the CABBAGE family
and little junior