Cabbage is a pretty hardy plant and it does well enough in the cold that dipping temperatures don't phase it too much. As long as I am able to keep the cabbage worms from turning my heads of beautiful cabbage into Swiss cheese remnants, I have enjoyed a bounty every single year that I have planted these from seed. This year I am opting for some floating row covers to keep those nasty little cabbage worms that I have to hand pick off, far far away.
This is a cost saving venture as well. Usually a head of cabbage runs around $2 at my local store. However, I am able to plant 20-30 heads for the cost of a packet of seeds and some dirt (seeds $2 and my tried and true dirt mix $8 for enough to plant all my seedling crops for the entire growing season- not just the cabbage). That breaks down into a huge savings in my book. Also, when harvesting cabbages, if wrapped in newspaper and kept in a cool dark location (basement anyone?) they can last for months upon months in cold storage and still be just as good. A great way to make your own saurkraut as well!
If you've missed my previous posts on my 4-1-1 potting soil mix I use, the mix is 4 parts soil, 1 part vermiculite and 1 part pearlite. You can purchase all of these items at your local Walmart, Lowes or Home Depot. The pearlite and vermiculite that I purchase are always more than enough for several hundred seeds that I start for the year and there is usually some left over to start next growing season as well.
It's really that simple, get on out there and get planting!