There seems to be some discussion about whether Quitzen is a good candidate for the coldest zones but we're a 4b and it grew first year here. I'll report back about growth next spring as well. I got mine from Hollingsworths fall 2016, think the first time it was offered commercially in the states. It grew fairly well here, had it in the newer beds so it was still tiny when we had our last blizzard which was probably a good thing! It only put out 2 stems but they were very well developed, indicated it will eventually be a fairly tall, robust plant. I had a single bud but it stopped growing at around the size of a normal marble. I saw it in person at Chotkowski's garden summer 2016; after I ordered it but before it was shipped. The flowers were definitely past their prime, only had a couple of older blooms on the plant, but definitely saw enough to make me glad I purchased it. The price for the 2 peonies you want is less than half of what I paid for the single root. I THINK I remember seeing that their division at that price was just a 1 or 2 eye piece, though, make sure you look and know what you'll be getting.
