One of our bushes tends to fruit a few days before the others due to it being a different cultivar. We started to see ripening berries on that bush and it meant all the others are just around the corner.
We check by pulling on the berry and when they drop off without effort they are ready to harvest.
We have four bushes and they tend to produce over a pound of berries through the summer. I got them about five years or so ago and they have really started producing.
Most of the bush needs another week or two to fully ripen but a couple every day are now ready for the picking.
One day I want many more Blueberry bushes but for now the four we have will do great. Between now and the next two weeks or so the berries should all ripen up.
Lastly I want to thank the Mason Bees for doing such a great job pollinating the flowers, we got so many berries the plants are hanging over..haha