Ok, just thought of another- Late for me, and a very branchy is the tall-but-wiry dip Ocean Depths
Also, Laura Harwood which, too, is registered as midseason but is mid-to-late in my garden. She is just getting started here, behind all the others. Not especially tall, though.
And easily located Wilson Spider gives a lavender impression and is later than others. Not very tall.
WS child Small World Stained Glass is taller and darker, but can flop in the semi-shade.
