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Iris tectorum Roof iris Evergreen perennial (1 Page of 5) The Iris tectorum plant species is found in E. Asia - China, Japan. It is a member of the Iridaceae family. Common gardeners may know the plant as Roof iris. Cultivation | Propagation | General Uses Medicinal | Edible Uses Latin Name: Iris tectorum Common Name: Roof iris Family: Iridaceae Author: Maxim. Known Hazards: Many plants in this genus are thought to be poisonous if ingested, so caution is advised[65]. The roots are especially likely to be toxic[238].
Plants can cause skin irritations and allergies in some people[238]. Mature Height: 0.3 Mature Width: 0.5 Habitat: Grows wild on shady rocky slopes and in scrub, it is also found planted on thatched roofs in Japan.
Cultivation Notes: Prefers a well-drained loam rich in leafmold with plenty of moisture in summer and an open sunny position[1, 42, 79, 200]. Requires a really well-drained soil that is dry rather than damp, and a hot sunny position[233]. Prefers a lime-free soil but succeeds in most good soils and in partial shade[79]. Succeeds in dry soils and, once established, is drought tolerant[190].
Cultivated for its edible root in Japan[2]. There are some named varieties, selected for their ornamental value[233]. In China the plants are grown on the roofs of houses[190].
Plants do not flower so freely in cultivation in Britain. In their native habitat they experience cold dry winters and warm wet summers[187]. It is best to lift the plants in October, store them in sand in a cool frost free place over winter and replant in March[1].
Members of this genus are rarely if ever troubled by browsing deer or rabbits[233].
For further Iris tectorum 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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