Paeonia lactiflora - Chinese Peony

Family:	Paeoniaceae
Habit:	Perennial
Height:	0.75
Width:	0.5
Synonyms:	P. albiflora. P. edulis.
Range:	E. Asia - Siberia to Mongolia.

Paeonia lactiflora (Chinese Peony) is a Perennial which grows to a height of 0.75m and a width of 0.5m . It has a hardness rating of 6.
Chinese Peony will flower in December. the seeds ripen from February
The flowers from this plant are hermaphrodite (has both male and female organs) and they are pollinated by Insects

Soil Information

Chinese Peony will grow in light (sandy),medium (loamy),hard (clay) soil. It is not necessary for the soil to be well drained.
The soil prefers the following PH / acid levels :
- pH of less than 6, Acidic soils
- pH between 6 and 8, Neutral soils
- pH greater than 8, Basic soils
Chinese Peony prefers either dry or moist soils

Ideal Planting Locations

Chinese Peony can grow in semi or areas with no shade.

Dry open stony slopes, riverbanks and sparse woodland edges[74].

Planting places suited to this plant described below.

• Grows within a woodland garden
• Grows on a sunny edge
• Works within dappled Shade
• Grows in a shady edge

Cultivation Details

An easily grown and undemanding plant[250], it does best in a deep rich soil, preferably neutral or slightly alkaline[1], doing quite well in sun or light shade[1, 200]. Plants are tolerant of a wide range of soil conditions, but will not survive if the soil becomes waterlogged or is too dry[250]. This species is lime tolerant[200]. Plants grown on sandy soils tend to produce more leaves and less flowers, whilst those growing on clay take longer to become established but produce better blooms[250]. Prefers a rich heavy soil that is well-drained but remains moist in the summer[187]. The species is hardy to about -25°c, but there are many named varieties some of which are hardy to about -50°[187]. Cultivated as a medicinal plant in China[178]. A very ornamental[1] and long-lived plant, surviving in gardens for 50 years or more[200]. Many hundreds of named varieties have been developed for their ornamental value[250]. Members of this genus are rarely if ever troubled by browsing deer or rabbits[233]. A greedy plant, inhibiting the growth of nearby plants, especially legumes[54]. Strongly resents root disturbance, taking some time to recover if it is transplanted[1]. Plants should be planted with their crowns no more than 3cm below soil level. If planted deeper they do not flower so well[187]. Peony species are usually self-fertile, though they will also hybridise with other species if these flower nearby at the same time[250]. Plants take 4 - 5 years to flower from seed[200]. They generally breed true from seed[1].

Edible Uses*

* See disclaimer
Edible Rating: 1/5
Root - cooked and eaten in a broth[2, 4, 46, 183]. Stems - cooked[177]. Seed - powdered and mixed with tea[4, 183].

• Root - includes bulbs, corms, tubers, rhizomes etc.
• Seed - includes nuts, cereals, peas and beans.
• Stem - this often intergrades into leaves.

Medicinal Uses*

* See disclaimer
Medicinal Rating: 3/5
The root of Chinese peony has been used for over 1,500 years in Chinese medicine. It is known most widely as one of the herbs used to make 'Four Things Soup', a woman's tonic, and it is also a remedy for gynaecological problems and for cramp, pain and giddiness[254]. When the whole root is harvested it is called Chi Shao Yao, if the bark is removed during preparation then it is called Bai Shao Yao[250]. The root is alterative, analgesic, anodyne, antibacterial, anti-inflammatory, antiseptic, antispasmodic, astringent, carminative, diuretic, emmenagogue, expectorant, febrifuge, hypotensive, nervine and tonic[176, 218, 238, 279]. The most important ingredient medicinally in the root is paeoniflorin, which has been shown to have a strong antispasmodic effect on mammalian intestines, it also reduces blood pressure, reduces body temperature caused by fever and protects against stress ulcers[250]. It is taken internally in the treatment of menstrual disorders, injuries, high blood pressure, pre-menstrual tension and liver disorders[238]. It should only be used under the supervision of a qualified practitioner and should not be prescribed for pregnant women[238]. The roots are harvested in the autumn from cultivated plants that are 4 - 5 years old and are boiled before being sun-dried for later use[238, 250]. The roots of wild plants are harvested in the spring or (preferably) in the autumn and are sun-dried for later use[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 Rehmannia glutinosa, Ligusticum wallichii and Angelica sinensis[254]. A tea made from the dried crushed petals of various peony species has been used as a cough remedy, and as a treatment for haemorrhoids and varicose veins[250].

• Alterative - Causes a gradual beneficial change in the body, usually through improved nutrition and elimination, without having any marked specific action.
• Analgesic - Relieves pain.
• Anodyne - Relieves pain, it is milder than an analgesic.
• Antibacterial - Kills bacteria.
• Antiinflammatory - Reduces inflammation of joints, injuries etc.
• Antiseptic - Preventing sepsis, decay or putrefaction, it destroys or arrests the growth of micro-organisms.
• Antispasmodic - Relaxes muscular spasms and cramps, calming nervous irritation.
• Astringent - Produces contraction in living tissue, reducing the flow of secretions and discharges of blood, mucus, diarrhoea etc.
• Carminative - Reduces flatulence and expels gas from the intestines.
• Diuretic - Acts on the kidneys, promoting the flow of urine.
• Emmenagogue - Promotes or increases the menstrual flow. In early stages of pregnancy it can induce an abortion.
• Expectorant - Clears phlegm from the chest by inducing coughing.
• Febrifuge - Reduces fevers.
• Hypotensive - Reduces blood pressure, it is used in the treatment of high blood pressure
• Nervine - Stimulates and calms the nerves.
• Tonic - Improves general health. Slower acting than a stimulant, it brings steady improvement.
• Women's complaints - A very vague title, it deals with a miscellany of problems peculiar to the female sex.

Propagation

Seed - best sown as soon as it is ripe in a cold frame[250]. When sown fresh, the seed produces a root about 6 weeks after sowing with shoots formed in the spring[200]. Stored seed is much slower, it should be sown as soon as possible in a cold frame but may take 18 months or more to germinate[200]. The roots are very sensitive to disturbance, so many growers allow the seedlings to remain in their pots for 2 growing seasons before potting them up. This allows a better root system to develop that is more resilient to disturbance[250]. If following this practice, make sure you sow the seed thinly, and give regular liquid feeds in the growing season to ensure the plants are well fed. We usually prick out the seedlings into individual pots as soon as they are large enough to handle, and then grow them on in a cold frame for at least two growing seasons before planting them out when they are in growth in the spring[K]. Division with great care in spring or autumn. Each portion must have a leaf bud. If the lifted root is stood in shade for several hours it becomes less brittle and easier to divide[200]. Divisions that have several buds will usually flower in the second year, but those that only have one or two buds will take a number of years before they have grown sufficiently to flower[250].

Scented parts of the plants

Flowers : Fresh

Known Hazards

None known

Other Uses

None known

Cultivars

'' - There are some named forms for this species, but these have been developed for their ornamental value and not for their other uses. Unless you particularly require the special characteristics of any of these cultivars, we would generally recommend that you grow the natural species for its useful properties. We have, therefore, not listed the cultivars in this database[K].

References

Flora of the USSR.
Komarov. V. L.
Author: Komarov. V. L.
Rating:
Publisher : An immense (25 or more large volumes) and not yet completed translation of the Russian flora. Full of information on plant uses and habitats but heavy going for casual readers.
Date of Publication : 1968

The New RHS Dictionary of Gardening. 1992.
Huxley. A.
Author: Huxley. A.
Rating:
Publisher : Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
Date of Publication : 1992

Flora of China

Author:
Rating: http://flora.huh.harvard.edu/china/
Publisher : On-line version of the Flora - an excellent resource giving basic info on habitat and some uses.
Date of Publication : 1994

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