Division in spring. Large divisions can be planted out direct into their permanent positions. We have found that it is better to pot up the smaller divisions and grow them on in light shade in a cold frame until they are well established before planting them out in late spring or early summer. Layering.Stem tip cuttings. Any part of the stem roots easily.
Practical Plants is currently lacking information on propagation instructions of Oenanthe javanica. Help us fill in the blanks! Edit this page to add your knowledge.
This plant is quite possibly not hardy in Britain,  gives a hardiness zone of 10, which means that it is not frost tolerant. However  says that it grows in all areas of lowland Japan and this should include areas that do experience frosts and snow. Another report says that many forms of this species are not frost-hardy, though some forms have hardy roots. There is also a lot of confusion over the correct name for this species. Some reports give O. stolonifera. DC. or O. stolonifera. Wall as the correct name whilst other reports say that these names are synonyms of O. javanica.  says that O. stolonifera japonica. (Miq.)Maxim. is a synonym of O. javanica. It is quite possible that both O. javanica and O. stolonifera are valid names and the uses listed here belong partly to each species. More research is required.This species is occasionally cultivated for its edible root or for its edible leaves according to another report, there are some named varieties. There are two main forms of this species, a red form has edible shoots whilst a white form is grown for its medicinal root. In Japan this plant and six other herbs are customarily boiled in rice gruel on January 7th. The cultivar 'Su Zhou' is medium early and has few fibres plus an excellent taste.
Problems, pests & diseases
Associations & Interactions
There are no interactions listed for Oenanthe javanica. Do you know of an interaction that should be listed here? to add it.
Polycultures & Guilds
There are no polycultures listed which include Oenanthe javanica.
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