Depends somewhat on where you are. Here in middle Georgia Broccoli and Cabbage do well as a late summer early fall planting for harvest late November through December. Sometimes they will last into the winter. Most broccoli varieties do well in that situation. Cabbage needs to be short season. Greenbriar and Quick Start have done pretty well for me.
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For broccoli ihav have success with about a dozen varieties ranging form Barbados to Windsor.
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I picked up a package of Ferry's Round Dutch cabbage seed last fall,and they did great here in the Dallas, TX area. I planted them in around Oct. and had cabbage growing all winter and spring, and harvested lots of nice heads. So I recommend them. The seed package said they were very cold hardy, and they were... They survived a few mid-20 nights last winter pretty well.

This post was edited by ccabal on Sat, Jun 29, 13 at 14:12

I have had great results with Premium Crop Broccoli. It makes nice heads and lots of side shoots. This year I am trying Packman too.

A good cabbage variety for California is Early Jersey Wakefield. This was a favorite of famed organic gardener, Alan Chadwick. He grew it in Santa Cruz, but its performance in San Diego should be equally as good.

Here is a link that might be useful: Alan Chadwick

I agree with Donnabaskets.. have always had great results with Premium Crop. It has been my go-to performer. Others which I've tried with good results are Everest, Majestic Crown, and Packman. All of the preceding are hybrids. The only OP broccoli that has done well for me is Green Goliath.

I don't usually plant cabbage; I prefer to use all avaible space for broccoli, cauliflower, and Brussels sprouts. However, Flat Dutch would be what I would plant if planting cabbage.

The list below might be helpful. It is not complete as Diplomat (a new cultivar I am trying this year) is not on the list...

The sad news is that folks at the garden center in town are telling that they will not likely be able to get Premium Crop any longer. Diplomat is their trial replacement.

Here is a link that might be useful: Broccoli Cultivars