Family:RUTACEAE Genus:Dictamnus Species:albusL. Common names:Purple-flowered Dittany;Purple-flowered Dittany Distribution summary:Southern Europe to China & Korea Habit:Perennial Hardiness:H5 - Hardy; cold winter Habitat:Rocky slopes Garden status: Currently grown Garden location:Europe & Middle East (J) Flowering months:May, June Reason for growing:Toxic