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Brassica rapa pekinensis - (Lour.)Hanelt.
                 
Common Name Chinese Cabbage
Family Brassicaceae or Cruciferae
USDA hardiness Coming soon
Known Hazards None known
Habitats Not known in the wild, it is possibly a cross between B. campestris rapa (the turnip) and B. napus chinensis (Pak-choi)[206].
Range A cultivar of garden origin.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Care
Moist Soil Semi-shade Full sun

Summary

Brassica rapa pekinensis Chinese Cabbage


http://commons.wikimedia.org/wiki/File:ChineseCabbage.jpg
Brassica rapa pekinensis Chinese Cabbage
http://commons.wikimedia.org/wiki/User:Fanghong
   
Physical Characteristics
 icon of manicon of flower
Brassica rapa pekinensis is a ANNUAL growing to 0.5 m (1ft 8in).
It is not frost tender. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Bees.The plant is self-fertile.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils and can grow in very acid soils.
It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

Synonyms
B. campestris pekinensis. B. cernua. B. pekinensis. (Lour.)Rupr.

Habitats
 Cultivated Beds;
Edible Uses
Edible Parts: Flowers;  Leaves.
Edible Uses:

Leaves - raw or cooked[116, 160, 171]. A crisp, watery texture with a naturally sweet taste, it is best eaten raw in salads[116, 206]. The plant can be eaten as a young seedling, or left to grow into a mature plant[206]. The flavour is quickly ruined by prolonged cooking[206]. Leaves can also be dried for winter use[206]. The heads of mature plants can be 50cm long and weigh up to 4.5 kg[200, 206]. Fresh leaves do not store well and are best used within a day or two of harvesting[206]. A nutritional analysis is available[218]. Flowering shoots - raw or cooked[206]. Sweet and tender[133].
Composition
Figures in grams (g) or miligrams (mg) per 100g of food.
Leaves (Dry weight)
  • 236 Calories per 100g
  • Water : 0%
  • Protein: 23.6g; Fat: 3.6g; Carbohydrate: 41.8g; Fibre: 16.4g; Ash: 30.9g;
  • Minerals - Calcium: 636mg; Phosphorus: 709mg; Iron: 9.1mg; Magnesium: 0mg; Sodium: 0mg; Potassium: 0mg; Zinc: 0mg;
  • Vitamins - A: 0mg; Thiamine (B1): 0mg; Riboflavin (B2): 0mg; Niacin: 0mg; B6: 0mg; C: 0mg;
  • Reference: [ 218]
  • Notes:
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.

Depurative.

The leaves are depurative[218].
Other Uses
None known
Cultivation details
Succeeds in a well-drained fertile preferably alkaline soil[16, 52, 200]. Succeeds in acid and alkaline soils[166, 200]. Prefers a pH in the range 6.5 to 7[206]. Tolerates a pH in the range 4.3 to 6.8. Prefers a heavy soil[16] and grows badly in sandy ones[200]. Prefers full sun[200, 206] and a sheltered position[206]. Likes some shade[16]. Drought resistant according to one report[160], whilst another says that the plants are shallow-rooted and have very little resistance to drought[206]. They require about 5 gallons of water from sowing to maturity[206]. Plants are not fully winter hardy in Britain, though mature plants withstand light frosts to about -3°c[160, 206]. Plants prefer coolish weather during their growing season, a temperature range of 13 - 20°c is ideal[206]. The Chinese cabbage is widely cultivated, especially in China and Japan, for its edible leaves[88]. It looks like a large cos lettuce or cabbage and has a crisp, watery texture with a mustard-like taste[264]. There are many named varieties[88, 206]. Those forms with loose heads were developed for areas with hotter summers, whilst compact-headed forms were developed for cooler areas[206]. The loose-headed forms are less prone to bolt, are more resistant to cold and are more disease-resistant[206]. An annual to biennial species, it is normally grown as an annual[206]. Plants take from 55 - 100 days from sowing to maturity, depending on variety, the loose-headed forms are usually 2 - 3 weeks faster than compact-headed forms[206]. Plants do not like root disturbance so should not be transplanted unless grown in individual pots[206]. Plants are highly resistant to fungus attacks and the cabbage moth[160], they are also slow to bolt in hot weather[160]. Some cultivars are more resistant to bolting when sown in spring than other forms[206]. There is some evidence that interplanting this species with dill and garlic can lessen the attacks of caterpillars[206]. A good bee plant[108].
Propagation
Seed - it can be sown from late May to September in situ[206]. The spring sown crops often run to seed very quickly but 'barrel' types can be sown at this time. If seedlings are germinated at a temperature of 18 - 20°c and then grown on at this temperature for their first few weeks, they are then less likely to bolt[206]. Seed usually germinates within 3 - 4 days[206]. A late summer sowing under protection can provide leaves in the winter[206]. Seedlings can be transplanted when about 3 - 4 weeks old[206].
Other Names
Found In
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 :
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Expert comment
 
Author
(Lour.)Hanelt.
Botanical References
200
Links / References
For a list of references used on this page please go here
Readers comment
 
Elizabeth H.
Sun Dec 2 2007
Also known as Wong Bok [cabbage]
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Subject : Brassica rapa pekinensis  

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