grafted plums are taking off

grafted plums are taking off. This one is Nanking cherry on the left and Toka plum on the right. These are putting on better growth than our orchard plum trees on their third leaf, the Prunus virginiana frame tree is well adapted to our sandy soil and puts on vigorous growth. How long will these grafts survive? Of the dozen various Prunus cultivars and species we grafted out this year will some of them have good compatibility? #grafting #plumtrees #chokecherry