I noticed this blossom on our walk this afternoon, it was far too windy to photograph in situ so I plucked a piece to bring home.
I'm not sure what it is, it's part of a hedge that has been mechanically pruned.   It has 2cm thorns, there are no leaves just the blossom which makes me think it is Blackthorn but surely it's far too early.   It's definitely not Hawthorn, could be a wild plum but do they have vicious thorns..  Whatever it is it's very pretty and is now sitting in a little vase on the kitchen windowsill for me to enjoy.
There's been strong winds all day and it started raining late afternoon just as we were walking home.