Yellow DP Blueberry (pics)...

The plant on the right hand side is yellow, always has been... It's DP Blueberry... far as I can tell everything is going just fine, but it's never greened up... I just want to make sure nothing is happening that I'm not paying attention to...

Soil pH is about 7.2, just watered yesterday, no nutes in more than a week... Drainage is good, everything seems fine... anyone just have a yellow plant before?

could just be a chlorophyll deficiency, kinda like how some humans get an extra chromosome.. j/k

looks like an iron issue.. find some chelated iron and add a pinch.