This piece of my old home was given to me by Judith Jones, owner of Fancy Fronds, WA.She thought I needed to have it and she was right! The Swiss Alpine Spikemoss, as she calls it, is very adaptable and an excellent groundcover under small trees, shrubs and even Bonsai. The evergreen carpet will change colors depending on moisture, temperature and sunlight from bright green to orange/bronze green to red. Said to be hardy to -5F, which puts it in USDA zone 6b.