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Iris pseudacorus
Yellow flag
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Latin Name: Iris pseudacorus
Common Name: Yellow flag
Family: Iridaceae(Click to Search)
Author: L.
Known Hazards: Many plants in this genus are thought to be poisonous if ingested, so caution is advised[65]. The roots and leaves are toxic to animals, including humans[13, 62, 65].
Plants can cause skin irritations and allergies in some people[238].
Habitat: Damp marshy areas and shallow water[17], often in shade[4].
Mature Height: 1.5
Mature Width: 2
Habit: Perennial
Propagation Notes: Seed - best sown as soon as it is ripe in a cold frame[4]. Stored seed should be sown as early in the year as possible in a cold frame. A period of cold stratification improves germination time and rates. Prick out the seedlings into individual pots when they are large enough to handle and grow them on in the greenhouse or cold frame for their first year. Plant out into their permanent positions in late spring or early summer.
Division in March or October. Early autumn is best[200]. Very easy, larger clumps can be replanted direct into their permanent positions, though it is best to pot up smaller clumps and grow them on in a cold frame until they are rooting well. Plant them out in the spring.
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