blueberry bush has yellowing leaves

[Debim]

Hi
I am the proud owner of a blueberry bush in the correct soil with bark as a mulch and have noticed that some of the leaves are starting to yellow. Is this normal?

[Bluemchen]

Not in my experience. They come out purple-ish, and then lighten to green. Have you watered it enough? They do like to keep their feet wet.