"Sacha" replied:
Might be Prunus dulcis or Prunus subhirtella autumnalis - try doing a
Google
Image search for a pic of those to see if they look familiar.
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I agree with Sacha, I have a lovely little compact Prunus Incisa 'Kojo No
Mai' in full flower just now. A small tree worth considering for its
flowers and autumnal leaf colours.

MikeCT