Q.Holly bush berries
My holly bush used to produce berries, but this year, 12/2016, there were none. What happened to it and how can I get it to have berries again?
Nearly all hollies require both male and female plants to produce berries. Unlike some other shrubs, holly is not particular about which species of male holly is available. If you have both male and female bushes then look to growing conditions such as too much shade. If you truly have flowers but zero berries, the problem is likely fertilization of those flowers isn't occurring. Perhaps a neighbor removed the male plant that fertilized your holly in the past.
Please see the following article for possible reasons your holly may have no berries. Only female hollies produce berries, and they need to be pollinated by a male holly bush. If you have only one holly, it must be a female, and the issue is likely that there are no longer any male bushes nearby.
https://www.gardeningknowhow.com/ornamental/shrubs/holly/holly-bush-no-berries.htm
If there were no flowers on yur bush either, see this article for possibilities:
https://www.gardeningknowhow.com/plant-problems/environmental/plant-not-blooming.htm
