Chelle--as if I needed any more reason to shop from Santa Rosa...
That actually could work very well as I have divided other plants I got from them immediately and the plants have been fine. That would actually be cheaper (with some of their great sales) than the liners from gardenharvest (the Karl Foerster came out to around 2.30 per small plant there). I once divided a carex Blue Zinger right from the pot into about 5 pieces and it did great
Those liners were what I was looking for but seems like SA or a local garden center could be cheaper.