Recently I let a bird-planted plant or two remain in my garden, growing under the protection of trees. I'm still not sure about it. Birds already relieved those in my garden of most of the berries. I dug out one that tended to take over companions.
Beautyberry Grove under Live Oaks in the Wild Gardens grows bigger every
year. There used to be a little grove of Sloe plums where deer bedded just to
the left; they disappeared one year and Beautyberries began to spread
toward the south.
We've plenty of them. I thought about trying to grow them together with Gulf Muhly grass but rethought that plan when I realized the berries disappeared down bird crops before the Muhly blooms here, unlike the gorgeous photo of that combination that I saw somewhere. I also feared Callicarpa would act as Duranta did, shading out clumps of Gulf Muhly before I realized what happened and my Muhly grass was dead.
Tina Huckabee of My Gardener Says has chronicled Beautyberry in a wonderful post that gives its positive points.