Helleborus Ivory Prince (‘Walhelivor’) Introduced a few years ago, Skagit Gardens kindly donated three plants of this lovely hellebore. Developed by English plant breeder David Tristram, this fabulous perennial is strikingly evergreen with blue green foliage faintly marbled in silver gray. In January, pale maroon-pink buds emerge from the base and slowly develop and come into bloom in February when it opens to a 3” cream white flower with a green base and over a period of several weeks, it gently ages to a pale green with a pink cast.