I have one of each. I did not plant them. They are in pots. I display them with mums also in pots and pumpkins going up the front steps.
I tier them in a diamond shape coming down the steps. Top landing 1 large maroon with yellow center mum, 1st step mum and a pumpkin, 2nd step mum and cabbage, 3rd step centered large kale.
When planted alone I do not find them attractive (they need lots of help) but when displayed with other plants they actually look quite nice.
I sometimes tip a large basket over on it's side, put a cabbage in it add a few gourds and a pumpkin. Some cornstalks on the side with a bow. It makes a nice fall display.