Tropicals & Tender Perennials: leaf problems, 1 by watersedge

watersedge wrote:
I'm sure that there might be a number of reasons why the leaves on this tuberose begonia are starting to get crispy on the edges but can anyone give me the list? There's another tuber in the same pot but it seems to be unaffected. The other begonias of the same variety and on the same table don't have this either. I just want to stop any potential problem before it begins to move around. Thanks,

Karl