Now available: PLANTS FOR YOUR FOOD FOREST: an important new book from PFAF. It focuses on the attributes of plants suitable for food forests, what each can contribute to a food forest ecosystem, including carbon sequestration, and the kinds of foods they yield. The book suggests that community and small-scale food forests can provide a real alternative to intensive industrialised agriculture, and help to combat the many inter-related environmental crises that threaten the very future of life on Earth. More >>>

Follow Us:

 

Rehmannia glutinosa - (Gaertn.)Steud.

Common Name Chinese Foxglove - Di Huang
Family Gesneriaceae
USDA hardiness 8-11
Known Hazards Considered relatively safe. Mild effects possible when taken for the first time including: loose stools, abdominal pain, dizziness and palpitations [301]. Use only as part of a herbal formula.
Habitats Well-drained stony ground along roadsides and in woods[109]. Mountain slopes and trailsides from near sea level to 1100 metres[266].
Range E. Asia - N. China, Korea.
Edibility Rating    (1 of 5)
Other Uses    (0 of 5)
Weed Potential No
Medicinal Rating    (3 of 5)
Care (info)
Half Hardy Moist Soil Semi-shade Full sun
Rehmannia glutinosa Chinese Foxglove - Di Huang


http://commons.wikimedia.org/wiki/User:Shizhao
Rehmannia glutinosa Chinese Foxglove - Di Huang

 

Translate this page:

Summary


Physical Characteristics

 icon of manicon of flower
Rehmannia glutinosa is a PERENNIAL growing to 0.3 m (1ft) by 0.3 m (1ft in).
See above for USDA hardiness. It is hardy to UK zone 9. It is in flower from April to June, and the seeds ripen from May to July. 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, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

UK Hardiness Map US Hardiness Map

Synonyms

Chirita chanetii. Rehmannia chinensis. Gerardia glutinosa. Digitalis glutinosa.

Habitats

Woodland Garden Sunny Edge; Dappled Shade; Shady Edge;

Edible Uses

Edible Parts: Leaves  Root
Edible Uses:

Leaves[177, 179]. No further details are given. Root - cooked[177]. Boiled nine times before it is eaten[179]. This suggests that the root is somewhat toxic, or at least has a very bitter flavour. Having boiled it nine times (and presumably throwing the water away each time), there is going to be very little left in the way of vitamins and minerals[K].

References   More on Edible Uses

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Antiseptic  Cardiac  Diuretic  Eczema  Febrifuge  Haemostatic  Hypoglycaemic  Skin  
Tonic

This plant, called Di Huang in China, is commonly used in Chinese herbalism, where it is one of the most popular tonic herbs and is considered to be one of the 50 fundamental herbs[218, 238]. The root is the main part used and it can be prepared in four different ways - charcoaled, prepared (but no details of the preparation are given) when it is called Shu Di Huang and fresh or dried when it is called Sheng Di Huang[176]. The roots are antibacterial, antiseptic, cardiac, diuretic, febrifuge, haemostatic, hypoglycaemic and tonic[61, 176, 178, 218, 238, 279]. They are used in the treatment of a wide range of ailments, including anaemia, cancer, bleeding, constipation, coughs, fever and premature ejaculation[174, 176, 218, 238]. The charcoaled root is used to stop bleeding and tonify the spleen and stomach[176]. The fresh root is used to treat thirst, the rash of infectious diseases and bleeding due to pathological heat[176]. The dried root is used to treat bleeding due to blood deficiency and to nourish the vital essence[176]. The prepared root is used to treat dizziness and palpitations due to anaemia or blood deficiency, chronic tidal fever, night sweats, dry mouth, lumbago and nocturnal emissions[176]. The roots of cultivated plants are harvested in the autumn or early winter, whilst wild plants are harvested in early spring[238]. They can be used fresh or dried[238]. The root is an ingredient of 'Four Things Soup', the most widely used woman's tonic in China[254]. The other species used are Angelica sinensis, Ligusticum wallichii and Paeonia lactiflora[254]. The leaves are bruised and used in the treatment of scaly eczema or psoriasis[218].

References   More on Medicinal Uses

Now available: PLANTS FOR YOUR FOOD FOREST: 500 Plants for Temperate Food Forests and Permaculture Gardens.

An important new book from PFAF. It focuses on the attributes of plants suitable for food forests, what each can contribute to a food forest ecosystem, including carbon sequestration, and the kinds of foods they yield. The book suggests that community and small-scale food forests can provide a real alternative to intensive industrialised agriculture, and help to combat the many inter-related environmental crises that threaten the very future of life on Earth.

Read More

FOOD FOREST PLANTS

Other Uses

None known

Special Uses

References   More on Other Uses

Cultivation details

Requires a light freely-draining humus-rich loam in light shade[200]. Prefers a neutral to acid sandy soil[238]. Requires a warm sunny position[188, 238]. This species is probably hardy to about -25°c if the plants are dry, but the softly hairy leaves are susceptible to rot in warm damp winters and so the plants are often grown in the greenhouse[187]. The plants are prone to fungal infections, especially when grown in damp conditions[238]. The Chinese foxglove is cultivated as a medicinal plant in China[238].

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

Type a value in the Celsius field to convert the value to Fahrenheit:

Fahrenheit:

image

The PFAF Bookshop

Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants, Edible Perennials, Edible Trees, and Woodland Gardening. Our new book to be released soon is Edible Shrubs.

Shop Now

Propagation

Seed - sow autumn or spring in a greenhouse[188]. Prick out the seedlings into individual pots when they are large enough to handle and grow them on for at least their first winter in a greenhouse. Plant them out in late spring or early summer. Root cuttings in winter[200]. Division in spring[238]. Basal cuttings in late spring or early summer[200]. Harvest the shoots with plenty of underground stem when they are about 8 - 10cm above the ground. Pot them up into individual pots and keep them in light shade in a cold frame or greenhouse until they are rooting well. Plant them out in the summer.

Other Names

If available other names are mentioned here

Found In

Countries where the plant has been found are listed here if the information is available

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

 

Print Friendly and PDF

Expert comment

Author

(Gaertn.)Steud.

Botanical References

109200266

Links / References

For a list of references used on this page please go here

Readers comment

Add a comment

If you have important information about this plant that may help other users please add a comment or link below. Only comments or links that are felt to be directly relevant to a plant will be included. If you think a comment/link or information contained on this page is inaccurate or misleading we would welcome your feedback at admin@pfaf.org. If you have questions about a plant please use the Forum on this website as we do not have the resources to answer questions ourselves.

* Please note: the comments by website users are not necessarily those held by PFAF and may give misleading or inaccurate information.

To leave a comment please Register or login here All comments need to be approved so will not appear immediately.

Subject : Rehmannia glutinosa  
© 2010, Plants For A Future. Plants For A Future is a charitable company limited by guarantee, registered in England and Wales. Charity No. 1057719, Company No. 3204567. This work is licensed under a Creative Commons License. Some information cannot be used for commercial reasons or be modified (but some can). Please view the copyright link for more information.
Web Design & Management