Plant
Yellow Flag Iris
Water & Wetland Plant
Britain's native wild iris of pond and river edges — tall, bright yellow flowers above sword-shaped leaves, and poisonous enough that grazing animals leave it alone.
💡 Fun Facts
- This is Britain's only wild iris with bright yellow flowers, standing tall at the edge of ponds and rivers in early summer.
- It has flat, sword-shaped leaves that point straight up out of the water.
- Almost nothing eats it — the whole plant is poisonous, so grazing animals like cattle and ponies leave it well alone.
📅 Through the Year
- Flowering:May to July