Last year I began an air layering project on a couple native viburnum in my yard. Well it didn't work last year so I left the sphagnum in place and this summr a little root action began but it was slow going. Now it is early September and there appear to be a numnpber of big fat roots but the sphagnum is not chock full of the, loke you see in the photos. Because it is so late I am concerned they won’t have enough time to establish enough roots to make it through the winter. So should I leave them on the trees until next summer or take the chance? At this point we have a almost 2 months before leaf drop here. I guess I could remove one and leave the other and play it 50:50.