Position

Sun exposure:
Dappled shade, full sun
Aspect:
South facing, west facing

Soil

Prefers rich soil:
Boggy / Clay / Heavy / Moist

Yellow flag iris, Iris pseudacorus, is a vigorous water iris, typically found growing at the edges of large, sunny ponds. It bears large clumps of green leaves from which elegant, yellow flowers appear in late-spring.

Iris pseudacorus is ideal for wildlife gardens, and looks particularly good if planted in naturalised drifts among other moisture-loving plants. It also associates well with dark blue flowered plants. If you don't have room for a pond or bog garden, try growing it in a large container filled with water. Divide rhizomes every three to five years to keep it under control.

A note on toxicity: irises are toxic to pets, but the toxicity is considered mild and non life-threatening. If your pet consumes a large amount of foliage or the rhizome, seek veterinary advice.

Plant calendar

JanFebMarAprMayJunJulAugSepOctNovDec
Plantyesyesyesyesyes
Flowersyesyesyes
Divideyesyesyes

Iris and wildlife

Iris is known for attracting bees. It has nectar/pollen rich flowers.

Is known to attract Bees
Bees
Is not known to attract Beneficial insects
Beneficial insects
Is not known to attract Birds
Birds
Is not known to attract Butterflies/​Moths
Butterflies/​Moths
Is not known to attract Other pollinators
Other pollinators

Is Iris poisonous?

Iris causes an upset stomach.

Toxic to:
Is known to attract Cats
Cats
Is known to attract Dogs
Dogs
Is known to attract People
People
No reported toxicity to:
Is not known to attract Birds
Birds
Is not known to attract Horses
Horses
Is not known to attract Livestock
Livestock
Plants that go well with Iris pseudacorus
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