JSheridan,
I agree with the above suggestions as well, and will add the following comment - I ALWAYS bare root new Heuchera/Heucherella varieties as soon as I get them home. I use hose to wash all the soil off, cut back some of their top growth, and then plant them in a suitable location based upon their sun tolerance, with compost to amend the soil. Then they should be mulched in late fall to prevent heaving. I still loose a few here and there, but my luck is much better since I started doing this.
Good luck!
Jen