I have two old thuja trees from the hedge. Foliage is very far from the trunk so I need to graft foliage back to the trunk. Of course best option is to graft it with thuja foliage for best compatibility. You should just check all post here - mainly first ones. I just came here to ask, what is possible and answers from others was, that grafting juniper or chamaecyparis to thuja is also possible (check photos up here). So why not to have tree with better foliage if it is possible? Maybe I will go with chamaecyparis, because it is probably more compatible with thuja than juniper. But I have two trees. Maybe I will try to graft juniper on one and chamaecyparis on the other. If it fails I could always graft it just with thuja next year and forget about experiments (but why not have some fun with trying something new). If it will be successfull and confirmed after few years, maybe it could help someone else.I keep seeing this thread popping up, and I keep wondering why you want to graft another species onto your white cedar. What's wrong with real folige?