That is a great choice! I wasn't familiar with juneberry or Amelanchier, so did a quick lookup. I actually have it natively in my woods but have always called it by one of its many common names - serviceberry. Never knew what the latin name was and never heard it called juneberry. I think it will work really well in shape and form. Another bonus - it is absolutely the very first tree that blooms in the spring - about two weeks before anything else for me. I heard folklore that the reason one of the common names is serviceberry is that it was an indicator in the early years of US settlement that when that tree blooms, the ground is thawed out enough to be able to bury people who had died over the winter.