Yep. Have had one for years. Not an easy species. They drop branches easily, attract all kinds of bugs and generally have long internodes and big leaves.
They are mostly not worth collecting because they tend to be uninteresting. Bark is usually smooth and gun metal grey with little variation. Not many interesting trunks either--usually straight or with no interesting bends twists, etc.
I collected the one I've had for 15 years or so because it was an exception to all of the above. It's bark was rough like a pines and it's trunk had been repeatedly broken by pickups driven by drunken teenagers.
That said, they're easy to collect. You can measure out six inches from the trunk and saw off all the root s and remove in one shot. However, once you get the tree growing in a container, pruning in springtime or later will result in dropped branches and possibly an entire trunk. I pruned in late winter to avoid that.
This tree is a "pioneer" species that grows rapidly and changes constantly if something harms it or its damaged. It tends to abandon old sections of trunk and branches completely in favor of push sprouts from the base or from completely new areas of the living portions of the trunk.
Blooms are sporadic in a container and aren't typical cherry blossoms, but are racemes, like wisteria only a lot smaller. They're nothing special.
Additionally, this species is a favorite of tent caterpillars. If you have those in your area, they will find this tree and attempt to defoliate it--as they often do full-sized Black Cherry trees. While their wild counterparts can recover, a newly collected tree two or three years into training might not...
