a few z grafts, you can see how on the

a few z grafts, you can see how on the larger rootstock it helps heal over the cut faster than a graft just off to one size. the large one is an unnamed plug directly onto chokecherry, and the small ones are american wild plum interstems between chokecherry and black ice plum - a sandcherry hybrid I'm trying to root this summer, basically it's a cherry plum - and the other has alenja on top, which survived -40 so another interesting imported plum to grow,