Korean rhododendron is a woody, deciduous shrub in the Ericaceae (blueberry) family. Its form is twisting, multistemmed and open and it has spectacular, showy, pink flowers that appear in late winter to early spring before its diamond-shaped leaves appear.

Rhododendron mucronulatum, the Korean rhododendron[1] or Korean rosebay (Korean: 진달래; RR: Jindalrae), [2] is a rhododendron species native to Korea, Mongolia, Russia, and parts of northern China.

It is a selection from over one thousand plants, raised by Henry T. Skinner at Cornell University, USA, from seeds of R. mucronulatum bought from the Yokohama Nursery Company in 1931. It was named and put into commerce in 1952 ( R.C.Y.B. 1967 , p. 132).

Rhododendron mucronulatum, commonly called Korean rhododendron is noted for its unusual (for rhododendrons) deciduous habit and for its early spring flowering period. It is native to Korea, Japan and northern China.

Rhododendron mucronulatum is native to Korea, Japan, and northern China. Want to learn how to grow and care for rhododendron and azalea flowers like a pro? Follow these simple steps and enjoy their beauty.

Flower/Truss Description: Widely funnel shaped, pink to mauve to rosy purple, rarely white. Inflorescence 1 flowered, often from multiple buds. Foliage Description: Leaves elliptic to lanceolate, up to 3" long, deciduous. Height: 5 feet in 10 years. Glossary of …

Flower/Truss Description: Widely funnel shaped, pink to purple. Inflorescence 1 flowered, often from multiple buds. Foliage Description: Leaves elliptic to lanceolate, up to 3" long, deciduous. Height: 1 foot in 10 years. Glossary of plant description terminology.

'Crater's Edge' (also listed as 'Crater Edge') - This is a dwarf form that grows to only 3' tall with lavender-pink flowers that open from reddish buds. 'Nana' is a 2' dwarf form with purple blooms and reddish fall color.

These rhododendrons are evergreen, with the foliage taking on a purplish cast in winter. Hardy zone 5 to 7. Alkaline soils will lead to chlorosis (yellowing) of the leaves.

Rhododendron mucronulatum is a deciduous Shrub growing to 2.5 m (8ft 2in). See above for USDA hardiness. It is hardy to UK zone 4. It is in flower from April to May. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects. Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil.