Well, let's just say that collards are considered a southern *staple*. Look it up. Not so in the north. We actually don't use them mixed with meats, as southern cuisine would have them. They are great stir fried in some oil, ending up a lot like more tasty spinach. Put some ginger and or garlic in too. We also use them routinely as a salad green, though they are much more nutritious than most lettuce. In fact, their nutritional value is comparable in many respects to kale but, in my mind, they taste less bitter. Though they both grow well in cold weather, it's true that kale is a bit more freeze hardy, and collards are more accepting of some warmth. I just find it surprising that such a good vegetable is considered "southern" as in, it doesn't really belong in the mouths of northerners except those who want to "go southern". It sounds, however, like collards are indeed successfully moving north in some areas.