It's an orange colour but it looks yellow in the pic's :roll:
http://picasaweb.google.com/irwin453/OrangeCauliflower?authkey=Gv1sRgCPbWmZOol4jvtQE#5499049920846308338 (http://picasaweb.google.com/irwin453/OrangeCauliflower?authkey=Gv1sRgCPbWmZOol4jvtQE#5499049920846308338)
Nice looking. I have only grown white. But we can only grow them in fall/winter/spring. Much to hot now. Hard to keep it from getting sunburned also.
This is one of the medium sized purple cauliflowers my wife has grown.
(http://img844.imageshack.us/img844/6663/sam0092y.th.jpg) (http://img844.imageshack.us/i/sam0092y.jpg/)
Some of them got really big.