I ordered Zoey Rey dahlia from Swan Island, probably the largest of the dahlia nurseries (rather than a broker, like Breck's). I just checked and they do not carry Proycon, sorry.
The problem I see is that ordering each plant from a different nursery will cost a lot in shipping. Maybe there's a trusted source for both the toad lily and the dicentra. I hope someone will suggest a good company for you.
