black ice plums growing on chokecherry with an american wild

black ice plums growing on chokecherry with an american wild plum interstem. one of a few dozen cultivars I'm trying on these interstems this year. vigorously growing chokecherry with a trunk 1" or more, in good sunlight are suitable. I expect the plum to grow a little larger so still waiting to see how balanced the tree is, some of my 2-3 year old grafts may need a stake. I'm seeing americana match the vigour of chokecherry better than toka, which while takes and grows well, the prunus simonii in it is too vigorous and needs some pruning to manage the size. so does americana, trial is ongoing. the deer did some pruning for me this week, good that all of my grafts are up high. #grafting