I bought this hydrangea around this time last year. I chose it because of the unusual colouring. It was potted up into a larger pot and I posted a photo of the lovely purple and green flowers. https://365project.org/merrelyn/365/2020-12-26 . A year on and it's blooming beautifully, but I hadn't expected the flowers to be pink. I can only assume that it has something to do with the potting medium.
It looks lovely either way. I asked my husband and he says the plant originally was pink ( the colour can be changed by adding something to the soil).. I read somewhere that if you put nails into the flower pot, the plant will turn blueish) I always wanted to try it with a hydrangea plant.