I just purchased a gallon-sized Stardust sedum, a variety similar in size and shape to Autumn Joy. The plant was so large and dense, I thought I could divide it and get two smaller plantings instead of one large one. I have grown low-growing sedums from cuttings, but I have never had a large plant of this type to divide before.

I tried to get in between the super-dense clusters and separate the root clumps without cutting into them, but it didn't work, and I ended up slicing the large root clump right in half. So then I had two chunks, but each chunk had a huge sliced-open area of root.

Did I just kill my new plant, or should the sliced area heal? I've planted both halves, but I'll be so sad if I've killed a perfectly beautiful plant by being greedy.