I planted these seeds somewhere around the end of January, and started harvesting cabbage about two weeks ago, so kind of close to what the package said (66 days to maturity).
Now, these seeds are not open-pollinated, they are hybrids, most likely, so even if I was adventurous enough to save the seeds, they would not perform the same as their parent. But for a paltry $1.59 (and I only seeded maybe a third of the package, if that), I would harvest probably 30-40 pounds of cabbage, if not more. This variety, just like any type of cabbage, needs moist conditions, so I have to give it some water every day. It also is susceptible to snails, but they do not do a lot of damage. Some leaves, mostly the outer ones, would be chewed up, and these go into the compost or to the chickens. There is still a lot of fresh organic cabbage left for the humans. I would certainly plant this variety again, in the fall, as cabbage is not afraid of freezes.