If you get puppies to grow from trees, you're really gonna be on to something! (-;

Whether the tree is a "hybrid" won't have anything to do with how the root suckers turn out. Many prunus trees are propagated by grafting a cultivar scion onto a rootstock. This often results in root suckers, and, the root suckers are whatever the rootstock is, not the scion.

and since prunus is such a great diverse group of plant.. there is a chance.. the understock might not even be a plum ...

listen to me..

these are short lived trees.. like 10 years.. and subject to black knot and gummosis ... and scale ...

and frankly.. but for its pretty purple foliage.. i dont have a clue why one is good.. let alone propagating more ...

what you should do.. is plant OTHER THINGS ... and plan on losing this one in the next 5 to 10 years ... this way.. when it goes.. you already have replacements.. well grown.. and you can commit the youth-in-asia.. with foresight and lack of being bummed out ...

in the red family.. are some wonderful weeping beech ... and .. maple.. and.. well that list if for another post ...

of course.. we are basing all this on your ID ... you might want to master that ipad.. and start with a proper ID ... its kinda useless.. to waste time speculating about the wrong plant ...

ken

The name is Prunus cerasifera 'Pissardii' and it is just one kind of many purple-leaved plums that have been widely grown and distributed - depending on what you were seeing in the pictures that made you think you had that one you might just as well have another. Maybe a hybrid of a different origin than P. cerasifera, such as the much-planted 'Newport'.

If would be expected that the roots would be a different plum that the purple one was grafted onto. Unless the purple one was raised from a cutting or seed. In addition to occasional specimens raised by home gardeners from purple plum pits the purple-leaved cherry plums (forms of pure non-hybrid P. cerasifera) seed themselves into available spaces, as do the green-leaved cherry plums.