Blueberry leaf color
The leaf color on this mail-order Blueberry plant did not look right when it arrived. What could be the cause? Could it be cold temperature, lack of sunlight or nutrients, or pests? What should I do to make it healthy again?
New leaves on blueberries are often slightly reddish. You do not need to do anything.
Read through out pages on blueberries for good cultural practices: https://extension.umd.edu/hgic/plants/blueberries