Rhododendron dauricum is one of the earliest rhododendrons to bloom each year. Widely distributed in eastern Asia (including Siberia), it is recorded to be hardy to -32°C / -25°F (and hence used in hybridization work for hardiness). Elizabeth Carlhian, of the American Rhododendron Society Massachusetts Chapter, has written a comprehensive account of Rhododendron dauricum and its cultivars.

Nature / photography resource link: ARKive: Images of Life on Earth – “Using film, photographs and audio recordings, ARKive is creating a unique record of the world’s biodiversity - complementing other species information datasets, and making a key resource available for scientists, conservationists, educators and the general public.”