Check the listing for details. Live Moss - Waved Silk-Moss/Wavy-Leaved Cotton Moss (Plagiothecium Undulatum). Listed at 8.95 USD. PLEASE NOTE: Each order includes 1x 8oz plastic container filled with moss, shipped via Priority Mail for prompt and safe arrival. Waved silk moss (Plagiothecium undulatum) is great for decorating terrariums, vivariums, flower pots, moss gardens, and more. This moss forms wavy, curtain-like growth and can be observed draping over objects such as stones and logs. It has a truly unique appearance compared to other mosses. Sustainably harvested from our property in Western Washington (Moss Heaven). Waved silk moss will be freshly harvested upon order and shipped priority mail. This moss is especially lush, thick, and green compared to moss harvested from other locations. Very happy moss! When planted outdoors, moss prefers shade and plenty of water. Do not plant in direct sunlight. If grown in terrariums or vivariums, moss benefits from lots of light exposure and plenty of water.