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Fortunella japonica Round kumquat Evergreen shrub (1 Page of 5) The Fortunella japonica plant species is found in E. Asia - China, Japan. It is a member of the Rutaceae family. Common gardeners may know the plant as Round kumquat. Some home gardeners know the variety as Citrus japonica. Cultivation | Propagation | General Uses Medicinal | Edible Uses Latin Name: Fortunella japonica Common Name: Round kumquat Family: Rutaceae Author: (Thunb.)Swingle. Known Hazards: None known Mature Height: 2.5 Mature Width: Habitat: Not known in a truly wild situation[132].
Cultivation Notes: 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].
For further Fortunella japonica gardening information click on one of the blue links below Cultivation | Propagation | General Uses Medicinal | Edible Uses
The information above has been supplied solely via the hard work and dedication of the team at 'Plants for a Future'. View their bibliography

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