This year has been a little disappointing for my blueberry plants. I think it's mostly due to the fact that I hadn't trimmed the plants at all since I bought them a few years ago. However, it looks like the trimming I did this year is going to benefit me next year and years to come.
On my oldest blueberry plant, I noticed new canes growing out of the soil. New canes will produce more blueberries.
This is why trimming blueberries canes are a very important tip for growing blueberries.