Oooh, Garden Treasure is on my want list too! Until this year my only ITOH was Bartzella, that I absolutely love. Added Canary Brilliants with my Adelman's order and received a generous gift from a garden buddy here of a fat division of Julia Rose this year.
So my plan is to add one ITOH each year.
Liz, I feel your pain- lots of space here, but my ability to keep up the gardens diminishes with the passing of time. I think you're on the right track with beds of only peonies- that certainly does make for easier maintenance. I love my mixed beds, but they do make it more challenging to keep up.
I've been considering a nursery bed for new peonies and another for irises. Both would benefit from having space to themselves, at least till they mature.
