To produce a full flush of red berries, a female holly bush must be fertilized with pollen from a male plant. Inspect the flowers to identify gender.
The best way to determine the sex of holly plants is by examining the flowers, which are located between the leaf and branch joint. Although the.
So if you see a holly in berry, this is a female plant. But you can also determine the sex when they are not in fruit. When the plants are in flower look at the centre .