between deciduous shrubs and under trees. The cultivar Walberton's Rosemary='Walhero' (sometimes listed under H. × hybridus) has won the Royal Horticultural...

p. 30 Marriner, Derdriu (21 January 2017). "Earth and Space News: Helleborus 'Walhero' Has Pink Flowers and Sells as 'Walberton's Rosemary'". v t e...