According to one website:

"Helleborus niger 'HGC Jacob' is the latest selection from Germany's Heuger Hellebores, who seem to have gone a bit over the edge in introducing selections of Helleborus niger...all very nice, but do we really need a dozen different helleborus niger selections? This compact, early-flowering clonal selection starts flowering in November and continues into January. The 1' tall x 1' wide clump of glossy, dark green, deer-resistant foliage is adorned with an abundance of large, pure white flowers."

Flowers are not white.

The plants are very compact and show evidence of a lot of frost-bitten leaves having been trimmed off. They seem to be very dense and will do well in the area I've chosen for them.