I hate to bother everyone with two posts on the same forum, but I feel blessed to have found this site and I have one other plant that is giving me problems. This is a creeping charlie (pretty sure). I have two of them, bought at the same time, same place. They are both growing very well except that about once a month I find them covered in brownish-black leaves. I pick all the dead leaves off and by the time 30 days rolls around they are covered again. I don't know what's causing this - the plant is otherwise healthy - nothing noted on the underside of the leaves, nothing in the soil. I've moved them around the house a bit but no difference. As you can see in the pictures below, the leaves are still healthy, shiny green on the top but are crunchy brown on the bottom. Eventually the whole leaf will be this way and fall off. I gave my mom a cutting and it rooted well and was off to a great start, but one by one the leaves turned brown and the whole thing died (I guess because it could only stand to lose a few leaves being a new plant). Anyone that could shed some light on this would be most appreciated!