Dang Shen, Bellflower
Codonopsis pilosula

Family: Campanulaceae

What it is like

Codonopsis pilosula is a PERENNIAL CLIMBER growing to 1.7 m (5ft 7in). See above for USDA hardiness. It is hardy to UK zone 6 and is not frost tender. It is in flower from June to August, and the seeds ripen from August to September. 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. Suitable pH: mildly acid and neutral soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

Height (m): 1.7

Where it is found

Dense shrubby thickets, the shade of trees at forest edges, streambanks etc.

N.E. Asia - Korea

Conservation Status:

Countries/locations it is found in

How it is used

Food

Rating: 2

Root - raw or cooked.

Root: includes bulbs, corms, tubers, rhizomes etc.

Medicine

Rating: 3

Dang Shun is an important herb in Chinese medicine, it is a gentle tonic that increases energy levels and helps the body adapt to stress. The root contains saponins, triterpenes and steroids, it is similar in action to ginseng (Panax species), but it is milder and has a shorter-lasting effect. It is a sweet, warm, soothing herb that is taken as an energy tonic. It acts mainly on the spleen, lungs and stomach, raising secretion of body fluids and blood sugar levels, and stimulating the immune system. Research has shown that it increases haemoglobin and red blood cell levels and lowers the blood pressure. It also helps increase endurance to stress and promotes alertness. The root and the whole plant are adaptogen, appetizer, digestive, galactogogue, sialagogue, stomachic and tonic. It is taken internally in the treatment of low energy, poor appetite and digestion, anaemia, shallow breathing and debility after illness. It is often cooked with rice until it is glutinous and used as a tonic food. The dried root is decocted with other herbs and used to treat a wide range of ailments. The roots of plants at least three years old are harvested in the autumn and can be used fresh or dried.

Adaptogen: Helps the body

Appetizer: Improves the appetite

Digestive: Aids digestion.

Galactogogue: Promotes the flow of milk in a nursing mother.

Sialagogue: Stimulates the secretion of saliva.

Stomachic: Aids and improves the action of the stomach.

Tonic: Improves general health. Slower acting than a stimulant, it brings steady improvement.

Other

Rating:

How it is grown

Prefers a well-drained fertile light soil in full sun or semi shade. Plants only succeed in full sun if the soil remains moist during the growing season. Prefers a slightly acid soil. Although quite cold-hardy when dormant, the young growth in spring, even on mature plants, is frost-tender and so it is best to grow the plants in a position sheltered from the early morning sun. A climbing plant, supporting itself by twining and scrambling over other plants. The plant resents root disturbance and should be planted out into its permanent position as soon as possible. It is best grown on a high bank in order to give a good view of the flowers. Plants are very susceptible to the ravages of slugs. The young shoots in spring are particularly at risk, though older growth is also eaten.

Propagating it: Seed - surface sow in spring to early summer in an ericaceous compost in a greenhouse. Do not allow the compost to dry out. The seed usually germinates in 1 - 6 weeks at 20°c. Prick out the seedlings into individual pots as soon as they are large enough to handle and grow them on in a greenhouse for their first winter. Plant out in late spring or early summer and protect them from slugs until the plants are well established. Division in spring, with care, since the plant resents root disturbance. We have found it best to take small divisions that are teased out from the sides of the main clump so as to cause the least possible disturbance to the plants and to avoid having to dig up the clump. These small divisions need to be potted up and placed in light shade in a greenhouse until they are rooting well. They can be planted out into their permanent positions in the summer if they are large enough, otherwise in the following spring.

Best place to grow: Woodland Garden Sunny Edge; Dappled Shade; Shady Edge;

Habit: Perennial Climber

Hardiness: 5-9

Growth:

Soil: Light (sandy), medium

Shade: Semi-shade, no shade

Moisture: Moist

Things to keep in mind

Its other names

Local names

Synonyms

Campanumoea pilosula. Franch.