Rhododendron 'Rosy Lights' was developed in Minnesota to provide reliably hardy azaleas that can tolerate the often less-than-ideal soils found in the Midwest. Delightfully fragrant flowers in late spring are followed by intense orange and red fall color. Part of the key to success in the Midwest is the deciduous growth habit, allowing the plant to survive very low temperatures with little or snow cover to protect the foliage on evergreen species.