Just dissolve a tablespoon into a half gallon of water and water you plant with that and it should stop spreading within a week. The foliar spray may not be doing it. Only water in once and if it doesn't respond in a week water again with the same.
I had a problem with my rocklock, it wouldn't germ. I had it for three days and it didn't crack. So I cracked it with a razor very carfeully.