The answer is that American holly is dioecious, which means male and female flowers are borne by different sex plants. Without a plant of each sex near each other, there will be no berries.

I recommend planting either Meserve holly or American holly ... a welcome gift to present to neighbors and friends. Focus on Flowers is a two-minute, weekly podcast about flower gardening created ...

In the southern part of its range, including southern New Jersey, American holly ... as new growth begins. And holly blooms in May, with small, white, five-petaled flowers, with male and female ...

It looks an awful lot like our own “American ... will remember that holly species are what we call “dioecious” (meaning “2 houses”), in that male trees produce flowers (staminate ...