red cabbage & butterfly

Are red cabbage as attractive to the cabbage white butterflies? or does the red colouring confuse them.
because space is getting tight i am thinking of putting a row in a narrow bed which will be for flowers from next autumn....but there's enough time to grow a crop before it's needed. Trouble would be i can't net there.

need to do some serious reorganising if butterflies aren't fussy

I think butterflies are attracted by the smell of the leaves which they get through their feet 

looks like a rethink then folks.
Thanks for replies

Somebody has obviously not told our pigeons, as they attack any brussel plants left uncovered!!