I have had Graden Treasure (left) and Bartzella (with Doodle Trix) for several years. I purchased Bartzella from Park Seed. It was supposed to be 'First Arrival'. Not. They sent me a replacement (another small 4" pot) 2 or 3 years ago. It is of good size this year, but no buds:(
Last year I splurged 5 new Itohs from Svenson Gardens. The roots were big and healthy and sure enough, the plants did really well for the first year. Looks like 4 of the plants will bloom this year. Two so far, Prairie Charm :
and Pastel Splender
Yes, I would buy from this Swede again:)