I ordered more bark mulch than I can use this season. Can it be stored for next year spring? If so, what is the best way to store it?
I think as long as you keep it in a dry, sheltered location, it should be fine until next season. The main thing with bagged mulch is to keep it dry so that it doesn't sour. Most of the time bark mulch have been dried but if it's left in a humid or wet area, condensation could build up and that's when you would have a problem. So as long as you can keep it dry and cool, it should be fine.