Flowering Shrubs

It seems we have entered the season of flowering shrubs. This is one that we inherited in our garden, but I have no idea what it is. Suggestions welcomed.

Seeing as I've just gone past 150 blips, I've updated my blip map - still very strongly clustered around two nodes in Bradford District, but I'll have a few more outliers over the next week, including my first Scottish blip on Friday.

a flowering shrub ~ such delicate white petals ~ coiled spring unfurling