I bought these plant starts last year thinking they were dandelion greens, which are good for green smoothies and are said to have some very good detox properties. Unfortunately I found them to be very bitter and did not use them.
To my chagrin, they came back this year with a vengeance. I could not find it in me to destroy them and so I let them flower out. I was expecting the yellow dandelion flower, but to my surprise, they are dainty, quite pretty and edible - in addition to being a very hardy perennial. And as for color, they are the opposite of yellow - more of a purplish blue
Cichorium intybus, is a somewhat woody, perennial herbaceous plant of the dandelion family Asteraceae, usually with bright blue flowers, rarely white or pink. Many varieties are cultivated for salad leaves, chicons, or roots, which are baked, ground, and used as a coffee substitute and food additive.