Yellow flag iris is part of the Iris genus and its scientific name is Iris pseudacorus.
Yellow flowering species of Iris, grows best in wet conditions (such as wetlands). Can become invasive in some areas.
Strap like long bright green leaves.
Yellow flag iris is great for inexperienced gardeners and those that like low maintainance gardens.
This plant info is provided by the myfolia gardener's wiki. All details about Yellow flag iris have been kindly provided by our members.
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Remove the old flower heads to conserve the plants energy when seeds are not required
Divide established clumps every four years or so to keep the plants growing strongly
See our list of companion Plants for Yellow flag iris to see which plants you should plant in close proximity to encourage growth.
Can be grown from seed but easier and quicker to divide an established clump in the late summer or autumn after flowering
Transplant in early spring after last frost, or after dividing an established clump in early autumnEnsure that temperatures are mild and all chance of frost has passed before planting out, as Yellow flag iris is a very hardy plant.
Wait until seed pod turns brown, then cut the stem and collect the heads into a paper bag. Continue to dry the seed pods on a warm windowsill, until they split to release the seeds.
These problems, diseases and pests are known to affect Yellow flag iris plants:
Bacterial soft spot infection
Its specific epithet, meaning “false acorus,” refers to the similarity of its leaves to those of Acorus calamus, as they have a prominently veined mid-rib and sword-like shape. 1
Used to decontaminate heavy metals from drinking water
Yellow water iris, Yellow iris
Iris pseudacorus L.