Maybe this will help, Marshmallow:

http://www.pfaf.org/user/Plant.aspx?LatinName=Brassica%20oleracea%20botrytis%20aparagoides

Thank you. I appreciate that.

I grew one last year and am harvesting now- small cauli type heads, good flavour, and you can eat the leaves as cabbage.

I have had mine for 2 years and have had a few heads off this year. But the plants were very leggy and half of each one had died so I pulled them up. I'll sow some more seeds and try again. How do your plants look?