Smith and Hawken is going out of business. They have always had bags of green lichen for sale as decorative items, at a1.00 a bag, but now the stuff is on sale, at least at the local store here in Texas. Once gone, there will be no more, so if you want a good base for ground foam and foliage, go down to your local Smith and Hawken (if you are near one) and grab some on the cheap.