Question about Swedish Aspen
New to the forum and am hoping someone can provide some insight. I have about 12 Swedish Aspen that I have planted over the last couple of years. Half of them have done incredibly well (south facing front yard), while some are slower due to less sun in the back yard. This year, my trees in the back yard are starting to produce fluffy little clusters that I would almost call a catkin, akin to a poplar catkin. My neighbour's are doing the same thing. Does anyone know what these clusters are? The last time I had an aspen do this it died. These are trees planted last spring and seemed to do well all last season. Any thoughts would be appreciated! Many thanks!