Flowering for us, just after the Christmas rose, Helleborus niger, are the Helleborus x lemperi group. These hybrids represent crosses between Helleborus niger, which only comes in white flowers, and the slightly later group of Helleborus x hybridus, which come in a range of colors. These sterile hybrids flower with, or slightly after the Christmas rose. Below is Helleborus x lemperi ‘Liara’ in the garden today. Unlike Helleborus x hybridus, all lemperi hybrids are sterile. Hardiness Zone 4b-8a.

Lynn