I've managed to get a few tiny plants from seeds, but the germination rate is awfully low, and for some reason the plants never make it past a few inches tall.....very delicate seedlings, in my experience. So any sizeable plants I've ever had were bought that way!
I love rosemary chopped up and rolled in butter along with some minced garlic. You can chill a log of rosemary-butter, cut it into pats, and freeze it that way. Then throughout the winter you have little awesome herb butter bits to add to potatoes, meats, veggies, whatever....yum!
Jennifer