Dianne, the majority of my 1st peonies came from GH Wild's. Until I joined the different gardening forums, I had not a clue about the other companies I now use. Their tubers are inexpensive, and may take several years to bloom, but I still happily order from them. They're a great company if you want to order especially some of the older named varieties. What they send is way better than the dried up mess that I've bought in boxes locally.
I've learned to start the smaller tubers in pots, baby them to give them a chance to grow, and plant them in the garden 6 months to 1 year when they're more mature.
My new favorite company is Fina Gardens, they send tubers from the "Land of the Lost" LOL, the biggest and healthiest I've ever seen, and a lot of the Fina tubers planted last fall have come up with buds already.
I'll be happy to post pictures of Scarlett O'Hara in bloom. The plant done yesterday was in a 2 gallon put and had a lot of stems full of buds, hopefully it didn't sustain any damage from the rush of water through the garden bed.