Akiva Silver wrote:that looks like sweet mock orange to me
Interesting you say the flowers don't smell-the bushes I've known have a pretty strong orange blossom-y scent.
They love heavy pruning. No need to of course, but it stops them getting 'leggy' and twiggy.
Every once in a while I'd take out the old, corky-looking wood right at the ground and shorten the young canes/branches.