UK Native Wildflowers

Yellow Flag Iris - Iris pseudacorus

The Yellow Flag Iris (Iris pseudacorus) is one of our most handsome and distinctive wild flowers, a feature of wet places and watersides. It has stiff broad leaves that have a raised midrib. Up to a dozen bright yellow flowers with purple veins - but only a few open at any one time. Flowers during May-July.

The Yellow Flag produces a fleshy rhizome forming large clumps with stems 50-150cms tall. For planting out in large quantities we recommend approximately 6 plants per square metre. The current height of the plants is approximately 10-20cm.

If you are planning on creating or adding plants to a wildlife pond, please see our Planting Guide for Wildlife Ponds

  • Plant in wet, open and upland sites
  • Likes most moist soils
  • Found in wetlands, marsh, lochs, lakes and ponds
  • Pretty yellow flowers in summer
  • Native to the UK

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