Korean rhododendron is a cold-hardy shrub native to East Asia and grown in U.S. gardens. Its pink to purple flowers bloom before its leaves open, making it easy to spot in early spring. All parts contain toxic compounds and should not be eaten.

Appearance

Growth form
A shrub, usually 4–8 ft (1.2–2.4 m) tall and wide in gardens.
Leaves
Pointed, oval leaves 1¼–2¾ in (3–7 cm) long that turn yellow, bronze, and red in fall. The species name mucronulatum refers to the sharp leaf tip.
Flowers
Funnel-shaped flowers in pink to rosy purple, about 1¼–1¾ in (3–4.5 cm) across.
Flowering time
Blooms from late winter into spring in U.S. gardens. In the northeastern U.S., it flowers in March and April.

Look-alikes

Royal azaleaRhododendron schlippenbachii

Korean rhododendron usually flowers on bare branches. Royal azalea opens larger, paler pink flowers as its leaves emerge.

Why they get mixed upBoth are deciduous pink-flowered rhododendrons grown in U.S. gardens.

Where it lives

Typical habitats
  • gardens
  • woodland plantings
Range
Native to Korea, northern China, Mongolia, and the Russian Far East. In the U.S., it is grown in gardens in the Northeast and Southeast.
Preferred conditions
Hardy in 4a–8b. It likes moist, well-drained, acidic soil enriched with leaf mold, in dappled shade and a sheltered spot.
Flowering

Flowers Mar–Apr

Flowers Mar–Apr

Cautions

Cautions
All parts contain and should not be eaten.

Name and classification

About the name
Korean rhododendron is also called Korean azalea.
Varieties and forms
'Cornell Pink' is a garden selection with pale pink flowers.

Conservation

IUCN Red List
NENot EvaluatedNot yet assessed

Culture and stories

Culture and stories
  • In Korea, the petals are traditionally pressed onto small pan-fried rice cakes called hwajeon for a spring festival, and they're also used to flavor a traditional liquor.
  • Its Korean name is jindallae. Kim So-wol's 1925 poetry collection is titled after the flower.
Korean rhododendron (Rhododendron mucronulatum) — identification, habitat & look-alikes | Moeyo