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Fortunella japonica - (Thunb.)Swingle.
                 
Common Name Round Kumquat
Family Rutaceae
USDA hardiness 8-11
Known Hazards None known
Habitats Not known in a truly wild situation[132].
Range E. Asia - China, Japan.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Care
Half Hardy Moist Soil Semi-shade Full sun

Summary

Fortunella japonica Round Kumquat


http://commons.wikimedia.org/wiki/User:KENPEI
Fortunella japonica Round Kumquat
http://commons.wikimedia.org/wiki/File:Citrus_japonica_SZ15.png
   
Physical Characteristics
 icon of manicon of shrub
Fortunella japonica is an evergreen Shrub growing to 2.5 m (8ft 2in).
It is hardy to zone (UK) 9 and is frost tender. It is in leaf 12-Jan. The flowers are hermaphrodite (have both male and female organs)Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

Synonyms
Citrus japonica.

Habitats
Woodland Garden Sunny Edge; South Wall. By. West Wall. By.
Edible Uses
Edible Parts: Fruit.
Edible Uses: Pectin.

Fruit - usually cooked and used in jellies, preserves etc[183] or used as a flavouring, but it can also be eaten raw. The whole fruit, including the peel, is eaten[3, 132]. The fruit is acid whilst the peel is sweet[3, 132]. The peel is golden-yellow, smooth, thinner and somewhat sweeter than the oval kumquat, F. margarita[183]. The fruit is rich in pectin and makes excellent marmalades and jellies[240]. Vitamin C content is up to 0.24 mg/cc[240]. The fruit is about 4cm long[260].
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.

Antiphlogistic;  Antitussive;  Antivinous;  Carminative;  Deodorant;  Expectorant;  Stimulant.

The plant is antiphlogistic, antivinous, carminative, deodorant, stimulant[178, 218]. The leaves and fruit contain an essential oil, whilst the fruit also contains sugars and organic acids[283]. The fresh fruit is antitussive and expectorant - in Vietnam it is steamed with sugar candy and used in the treatment of sore throats[283]. It is said to be very good for infants[283].
Other Uses
Deodorant;  Essential;  Pectin.

The fresh leaves and young twigs yield 0.21% essential oil that might be suitable for perfumery[240].
Cultivation details
Prefers a moderately heavy loam with a generous amount of compost and sand added and a very sunny position[200]. Prefers a pH of 5 to 6[200]. Plants are intolerant of water logging[200]. This species is not hardy in the colder areas of the country, when dormant it tolerates temperatures down to about -5°c[200]. 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[K]. Kumquats are widely cultivated in China for their edible fruit, there are many named varieties[3]. The plant is less vigorous, somewhat thorny and considerably more cold tolerant[183] (the report gives no details of what this is in comparison to!). Kumquats are hardier than the various Citrus species since they cease growth when temperatures drop below 13°c but, for best results, it is best to grow them in a climate where temperatures do not fall lower than between 4 and 10°c[3]. This is because the fruit is sweeter when it ripens in warm conditions[3].
Propagation
Seed - best sown as soon as it is ripe in a warm airy position in a greenhouse. When they are large enough to handle, prick out the seedlings into individual pots and grow them on in a greenhouse for at least their first two winters. Plant out in late spring or early summer after the last expected frosts and give some winter protection from the cold for a year or two.

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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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Author
(Thunb.)Swingle.
Botanical References
200275
Links / References
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Subject : Fortunella japonica  

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