Iris pseudacorus

Iris pseudacorus

Yellow flag iris

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Flowers
Flowers
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Yes
Yes

Key Information

  • Botanical name: Iris pseudacorus
  • Common name: Yellow flag iris
  • Plant type: Marginal
  • Evergreen/Deciduous: Evergreen

Height: 1.2m

Spread: 1m

Flower colour:
  • Yellow
Foliage colour:
  • Green
  • Features: Flowers

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Iris pseudacorus

Yellow flag iris, Iris pseudacorus, is a vigorous water iris, typicallly 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 clumps every three to five years to keep it under control.

Position

  • Sun exposure: Full sun, Dappled shade
  • Aspect: South facing, West facing
  • Hardiness: Hardy
  • Maintenance: Prefers rich soil
  • Soil type: Clay/heavy/moist, Boggy

Wildlife

Attracts:
  • Bees

  • Beneficial insects

  • Birds

  • Butterflies / Moths

  • Other pollinators

  • Wildlife features: Nectar/pollen rich flowers

Care routine

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Plant
Plant
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Yes
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Divide
Divide
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Yes

Toxicity

Toxic to:
  • People

  • Cats

  • Dogs

  • Birds

  • Horses

  • Livestock

  • Effects: Irritates skin, Purgative if ingested

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