I just found out that Home Depot carriers Sphagnum Moss, but it comes in very small bags. I'll get everything I can at Home Depot then get the rest at the stores mentioned above. Just have NO idea how much to get of each, and I'm so bad with math so that doesn't help. Need enough to cover a 5'x16" area. If someone could walk me through how much to get of each I would be forever in your debt haha! I am just so confused right now especially because it seems they all have different units of measurement.