Can popcorn be used as a mulch in vegetable and flower gardens?
I beg to differ. While I agree it is probably not the best mulching agent, it definitely can be used as such and will provide mulch’s biggest contribution, which is the reduction of weed germination by simply blocking the sunlight. In time, providing enough is provided, it will grant all the benefits of mulching though I doubt it will be profitable. In fact, corn husks would be much better.