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Corydalis yanhusuo - Yan Hu Suo

Family:Papaveraceae
Habit:Perennial
Synonyms:
Range:E. Asia - China.
Corydalis yanhusuo (Yan Hu Suo) is a Perennial. It has a hardness rating of 0.
The flowers from this plant are hermaphrodite (has both male and female organs) and they are pollinated by

Soil Information

Yan Hu Suo will grow in light (sandy),medium (loamy), soil. It is / is important 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
Yan Hu Suo prefers moist soils

Ideal Planting Locations

Yan Hu Suo can grow in semi or areas with no shade.

Not known

Planting places suited to this plant described below.

Cultivation Details

We have very little information on this species and do not know if it will be hardy in Britain. The following notes are based on the general needs of the genus. Prefers a moist, well-drained rather light soil, thriving in semi-shade[1]. Grows well in a woodland garden or peat bed. Plants seem to be immune to the predations of rabbits[233].

Edible Uses*

* See disclaimer
Edible Rating: 0/5
None known

Medicinal Uses*

* See disclaimer
Medicinal Rating: 3/5
Yan Hu Suo is an important Chinese remedy that has been used for hundreds of years to help 'invigorate the blood' and relieve almost any painful condition[254]. It is used especially to relieve menstrual cramps, chest and abdominal pains[254]. The plant contains powerful alkaloids that are responsible for this effect[254]. The root is analgesic, antiseptic, antispasmodic and sedative[176, 218]. It has traditionally been used to lower pain and strengthen the circulation[218]. It is used in the treatment of a wide range of ailments including lumbago, dysmenorrhoea, hernia, chest pains, insomnia and traumatic injuries[176, 218]. The root is harvested in late spring or early summer, once the top growth has died down, and is dried for later use[254]. Various extracts from the plant have shown antitussive, cardiotonic, hypotensive and anticancer activity[218].

Propagation

Seed - best sown as soon as it is ripe, the seed rapidly loses viability if it is allowed to become dry[129]. Surface sow and keep moist, it usually germinates in 1 - 3 months at 15c[164]. Germinates in spring according to another report[129]. Two months warm, then a cold stratification improves the germination of stored seed[134, 164]. Sow the seed thinly so that the seedlings can be allowed to grow undisturbed in the pot for their first year. Apply liquid feed at intervals during their growing season to ensure they are well fed. The seedlings only produce one leaf in their first year of growth[175] and are very prone to damping off[129]. Divide the seedlings into individual pots once they have become dormant and grow them on in a partially shaded area of a greenhouse for at least another year. Plant them out into their permanent positions when they are dormant. Division after flowering.

Known Hazards

Although no specific mention has been seen for this species, there is a report that Corydalis species are potentially toxic in moderate doses[222].

Other Uses

None known

Cultivars

no recorded cultivars

References


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