How and When to Prune Mature Blueberry Bushes
With any luck at all, we will be able to harvest at least a few berries from about 6 blueberry bushes this year. Each year the birds or deer or bears beat us to them despite use of flash tape, deer spray, and a guard dog of sorts.
The bushes are mixed: some about 5 years old and others more like 20+ yrs old but they are getting too tall and flopping over adjacent plants which need sun, not blueberry bush umbrellas.
When is the best time and how aggressive can I be about pruning these bushes? Almost all of them are sending out new growth from near the base/trunk. Are there general guidelines on how much or what % to cut back in any one year? Do I cut out a few old canes severely or just prune them all equally?
Any help will be appreciated.