I posted this on the pests and diseases forum, also, but thought I'd try it here, too.

About two weeks ago I noticed that one of my Hellebores was starting to look a little sickly. It was just a small one that had sprouted next to the parent plant...then another baby...now the parent, too!!! I LOVE these plants and I'm afraid that it is going to spread to the two others beside it. They almost look like they are rotting, but it's very slow, and they are really not that wet. Plus they are all planted together and it's just this one clump. I attached some pics. In the first two you can see the healthy plant on the left and the dying one on the right. The last picture is a close up of the stems, which are turning black. Any ideas on what's wrong would be much appreciated. Thanks!

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