All the signs include photographs of the plants in full bloom, so if you go early in the year when there's nothing but foliage, you don't even have to know all the names to pick out good ones.
But the really amazing thing is how beautifully they're packed if you order them by mail. When they arrive at your home, there won't be a single distressed leaf, bud, or bloom. They really have packing down to a science. Edelweiss is the only other nursery that truly astonishes me each time I order something from them. In fact, Annie's and Edelweiss could teach the other mail-order nurseries a master class in packing and shipping.