‘Joseph Green’ a ruffled, mauve-purple, double-flowered cranesbill, with blooms held in loose clusters on slender stems with conspicuous multiple lime green stigmas. Discovered by botanist and horticulturist Lynne Green, this unusual form was named after her father, who had gifted her the original Geranium phaeum from which this was a cultivar. This clump-forming, ground-covering perennial with purple-stained, mid-green leaves is highly versatile and able to cope with high summer temperatures and freezing winter conditions.