Well, I hope it's 'Savoy Express' which is supposed to be one of their choices. 'Golden Acre' was a bit smoother leaved. Even though they had a bunch tagged "Ruby" nobody bought them because they were obviously not red cabbage. Didn't match the Cauliflower they had, and doesn't seem like common broccoli. Just hope it is not a collard, don't know what to do with that.

It’s wild mustard, I used plant identifying app and it also says the plant is sick because of the spots on it which indicate some kind of pest you need to get rid of so it doesn’t spread to other plants.

I suppose they are all from wild mustard, so in a broad sense it is not wrong. Been growing like a small cabbage, pic 17 days later.

The leaves almost look like kohlrabi but I don’t think there is a Ruby Ball variety. There is a red/purple cabbage called Ruby Ball (the variety carried in most grocery stores). Good luck—you’ll have your answer in a few weeks!

I think it is Savoy Cabbage.

For fall cabbage to head up before deep freezes, is it better to crowd the cabbage plant, or give them space?