They have a mild flavour that improves if they are left on the bush for 7 to 10 days after they ripen to blue.
The texture is somewhat gritty.
The upright bush can produce too many blueberries (diminishing the overall flavour) if not pruned each year during the winter.
Maru blueberries are easy to get at to harvest. They are popular with growers in New Zealand; being tried (2004) in Oregon, United States.
Maru blueberries were developed in New Zealand by the Ruakura Research Centre. One of the parents was “Premier OP” blueberries. They were released in 1990.