After tomorrow my water will be in the middle to upper 50s which is warm enough for me to get in there and start working. My lilies are all on the bottom of the pond and I usually put them up close to the surface to get them going as early as possible but this year will be my first time dividing and re-potting them. I've seen people do it to full grown plants, plants with a few full pads and in the fall before lowering them but never to dormat/just waking plants. When is it safe to split them? I don't want this warm break in the weather to get me over anxious!