Buddleia Globosa going yellow

[FisherThem]

I planted a Buddleia Globosa in a sunny meadowy area a couple of years ago. It just isn't happy and keeps going yellow. A 'normal' buddleia near by is fine. Is there anything special about this variety I should be aware of??

Could be chlorosis (a deficiency). Try giving it a shot of the supplement called seaweed + sequestered iron.