Posted: 04/07/2015 at 06:21
I'd agree with birches - nice airy canopy and lovely bark. Some of the rowans (Sorbus) would also be nice, and Amelanchier lamarkii is also good. It can be grown as a shrub or a tree, and has lovely autumn colour. I've used buddleia here as it grows quickly and is great for scent and, of course, butterflies
There are also lots of shrubs which will make a good screen rather than trees.
I 'd stay away from bamboo unless you really know what you're doing. You might regret those and so will your neighbours if they start running under the fence....