I almost bought a JM Nigrum yesterday; the tag on it said the species grows to a max of 12-15 tall, which is perfect for the location I have in mind. However, sources on the net have it maxing out at 20-25 feet. What is the real Nigrum max height? What you you suggest for a good JM that maxes out at 10-15ft tall? Frankly, I would LOVE Osakazuki or Sango Kaku, but a tree that maxes out 20ft+ doesn't work for my townhouse's humble back yard.