summer update for our plum on wild choke cherry grafts

summer update for our plum on wild choke cherry grafts. Nearly every prunus variety we tried has grown, the most vigorous growth on this set of trees on a sunny hill. Success with this type of grafting in the first year seems to depend on the age and location of the root stock, as well as the amount of undergrowth and management of new suckering growth. I held off trying this for years because of anecdotal reports that it wouldn’t work. My approach here is to question assumptions, research old studies where it was tried and do it for myself, there are quite a few variables, including genetic compatibility variation with specific individuals within a species. Choke cherry is prolific across forested areas in Canada, but there are no wood lots, parks, hiking trails or backyards full of them made into food forests by grafting them over.