User blog comment:Redexx/Screw houses, I can rawr./@comment-86.168.115.63-20120926154547/@comment-4057437-20120926200110

Once planted, a plant will produce four copies of itself. These will respawn, usually in just a few days. One can change what has been planted. One cannot plant Jarrin Root, (the first thing we tried!), any kind of Nirnroot, or any of the new plants or mushrooms added by Dawnguard, (Yellow Mt. Flower, for instance).