Description of Iris pseudacorus (Yellow Flag Iris)

Iris pseudacorus is yellow flag iris, a native marginal known for tall stems and bright yellow flowers in late spring. It thrives in very wet soil and shallow water.

Appearance

It forms strong fans of leaves and produces bold yellow blooms held above the foliage. Height is often 1 to 1.5m in flower.

Care Guide

It prefers saturated soil and copes with shallow standing water.

• Sun: Full sun.
• Soil: Wet soil or shallow margins.
• Water: Keep roots saturated.
• Control: Divide or contain if clumps get too large.
• Tidy: Remove old leaves in late winter.

It is very vigorous in rich wet soil.

Suitability for Bog Garden

This suits large bog gardens and pond edges where height and cover are useful. It is less suited to small contained beds unless grown in a basket.

It provides good shelter for wildlife.

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