Trees, Shrubs and Conifers: Winterberry questions and answers..., 1 by ViburnumValley

ViburnumValley wrote:
Finally, there is a USNA introduction that was recently rated the finest selection in the whole winterberry group in trialing performed by none less than Longwood Gardens.

I don't know about all that (given that southeastern PA is just about as close to the Garden of Eden as you can get for growing conditions in the US), but I've known this plant for about 20 years, and it is no slouch.

Ilex serrata x Ilex verticillata 'Sparkleberry'...