Or Prunus incisa Kojo-no-mai, if you prefer.
My brother has given me a couple of these in tiny 9cm pots for xmas. I know they can be grown in pots permanently, but I'd rather have them in the garden.
Question for the learned - do I need to grow these weeny plants in pots for another year or two before I evict them into the garden, or can I shove them in now?
I'm also probably going to plant one in the North facing front garden, even though they prefer full sun, because I've got a space there. It may not work but I can try....?