This moss is shipped in chunks and loose, these are not one piece sheets. 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. Each moss order order is a 12-16 ounce quantity, packed between two cardboard sheets to keep clean.