Hi, Either late last year or early this year, the lower part of the plant (the lower stem) started withering/drying out... So I cut the top and two lower leaf cuttings for replanting. The top one has been growing well since then. But there has been nothing happening on the leaf cuttings... not until recently that one of them made some new grows, but another looks like a goner. Question: what to do with the mother leaf? Remove or keep?