Cherry Blossom? Identification needed

Cherry Blossom? Identification needed

Observation - Cherry Blossom? Identification needed - UK and Ireland. Description: This is a tree found in my garden. It has perfectly white petals with green leaves with a red tinge to the ends of the leaves (May time). The tree still has many buds and so has not fully flowered yet.

This is a tree found in my garden. It has perfectly white petals with green leaves with a red tinge to the ends of the leaves (May time). The tree still has many buds and so has not fully flowered yet.