Cicoria grumolo rossa
I was not able to find the exact one I purchased from you in this list, but it is close! This is the first time I have planted radicchio, however I have been a vegetable gardener for a long, long time. I planted it early last summer. It was slow to mature. Due to our hot summers it didn't really take off until the fall. One thing I was concerned about was the fact that it was bright green, and not the beautiful red color on the seed package. I harvested some in late fall and added it to our salads, and we enjoyed its flavor. It survived all winter long, and we experienced some 20° nights several times. It looks great, has some red blotches on its leaves now, and is about six inches tall.