Is holly pollination species-specific?
I'm serious. My yard is surrounded by woods. To the best of my knowledge, no one in the neighborhood has Ilex verticillata except me.
The plants I have are loaded with berries while the two males had very few flowers. Even in the years prior to the males flowering, the winterberries had lots of berries. In fact, the females were planted for several years and had berries before I planted males. But there are also Foster hollies in the yard, and Ilex glabra (compacta and Shamrock). (The glabras so far have not had many berries).
Thanks for any help.