Frozentreehugger
Masterpiece
Mine are originating from . Iseli nursery . To get past the trouble of trying to import a tree . I ordered blind from a nursery that deals with them . ( they only sell commercial ) I did receive info from iseli that . There JWP are all grafted onto mugo . I have heard the same as you about . Air layer . So my plan is simple . A get tree known cultivar. See what I get . Grow it air layer small sections . And learn about air layering them . And possible air layer the complete tree if needed down the road . If I’m successful . Back of my mind is replace the foliage. On collected . EWPI've a hard time finding them myself, that's why I took a chance on this one. I've also read that air layering is either really hard or really easy.