This is T. semidecandra and I also very nearly considered moving or ditching it for it's poor flowering..you can see how hard it was pruned its first year. The second year it wasn't pruned and it was just not performing but this year it was great. It is shade by a large oak from midday on. We amend our sandy loam with a mulch. No fertilizer. I may give it a little Horse manure today that we use for the roses.
