Caption: "Mukdenia rossii 'Karasuba', 2016, CRIMSON FANS Mukdenia, muck-DEE -nee-uh ROSS-ee-eye, 1x2 ft #Perennial, USDA Hardiness Zone 4, Small white, bell-shaped flowers, Bloom Month 5a-5, In Garden Bed Y2 for 2.2 yearsNative to China, Manchuria and Korea. Grows