Bonnet bellflower is a twining vine native to East Asia, grown mainly for its fragrant, ginseng-like root, which Korean cooks grill with chili paste or serve fresh. It isn't found wild in the United States. It's also known by its Korean name, deodeok.

Appearance

Growth form
A hardy perennial vine that twines up other plants, usually reaching about 6.5 ft (2 m) and up to about 15 ft (4.5 m). The top dies back each winter. Cut stems and roots ooze white sap.
Leaves
Lance-shaped leaves (the source of the name lanceolata), clustered in fours at the tips of short side shoots.
Flowers
Nodding, bell-shaped flowers, pale green outside and marked with purple inside.
Flowering time
Late summer into fall (about August–October in Korea).
Fruit
A dry ; seeds ripen in September–October.

Look-alikes

balloon flowerPlatycodon grandiflorus

Balloon flower grows upright, 16–40 in (40–100 cm) tall, with puffy balloon-like buds that open into blue, white, or pink flowers. Deodeok is a twining vine with hanging green bells.

Why they get mixed upBoth are in the bellflower family, and both roots (doraji and deodeok) are staples of Korean cooking. Balloon flower is widely sold as a garden perennial in the U.S. (zones 3–9).

Where it lives

Typical habitats
  • Moist woodlands
  • Forest edges
  • Hillsides
Range
Native to Korea, Japan, China, and the Russian Far East, usually in woodland at about 650–5,200 ft (200–1,600 m).
Preferred conditions
Prefers light to medium, well-drained soil in full sun to part shade.

Growing it

Propagation
Usually grown from seed sown on the soil surface. It dislikes having its roots disturbed, and young plants are prone to slug damage.

Conservation

IUCN Red List
NENot EvaluatedNot yet assessed

Culture and stories

Culture and stories
  • Popular Korean dishes include deodeok-gui (sliced root grilled with a gochujang glaze), fresh seasoned salads, and pickles, including kimchi. It's also steeped into a homemade liquor.

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Bonnet Bellflower (Codonopsis lanceolata) — identification, habitat & look-alikes | Moeyo