This moss is Thuidium delicatulum, often called Fern or Log Moss, is a fast grower. Regretfully, it is known in the floral industry (when it is dried and preserved) as sheet moss. It is usually bright green but plants may display bright yellow color during a transition phase. When it dries out, Thuidium changes from a lush appearance to dried up looking fern fronds that appear sick or dead. Once hydrated, they change back quickly. It grows on just about every surface from soils to rocks to concrete walls. Thuidium really thrives in the shade but can tolerate sun exposures once established. Make sure to check moisture levels when your moss tray arrives. Fluff mosses with your hands. Rehydrate as needed and keep moist, but not soggy, until planted. If possible, stage your mosses outdoors until planting, rather than inside locations. Air conditioning or heat will dry out mosses quickly, and therefore require more attention to keep them fresh. Since florists and crafters treat most mosses as dead elements, we discourage the purchase of our LIVE mosses for these types of floral or craft projects. We request that buyers keep our mosses alive and thriving in sustainable landscapes or containers that feature the beauty of live, green moss colonies. 2 flats of 10×20″ mossApprox. 3 square ft.The price will include shipping!Shipping Continental US Only!