Rh. ledebourii
Flowering time: end of April-beginning of May
Flowers: rose-purple
Leaves: semi-evergreen, the leaves have an aroma of marsh Labrador tea
Height: 1.5-2 m
Width:
Hardiness: very good (-30°C)
Growing: In sun or partial shade, in acidic (pH 4.5-5.5), moderately moist, loose, rich in humus and permeable soil