Wild cherry, Prunus mahaleb, collected in France.
the old pot by John Pitt was quite nice, but too small. So I ordered a similar one a bit larger. I think now it's fine. John Pitt did a great job.
Of course this is to the time to repot a prunus. The right time in my climate is beginning to middle of April. But I did slip potting, just moving the intact root ball into a larger pot. This can be done any time.