| Scientific Name: | Iris pseudacorus |
| Common Name: | yellow flag iris |
| Family Name: | Iridaceae |
| Origin: | Africa, Europe |
| Hardiness Zone: | Zone 5: (-29 to -23 °C) |
| Plant Type: | Flowering cut plant, Ground cover, Herbaceous perennial, Invasive plant |
| Mature Size: | 1.3 - 2.0m x 1.5 - 2.0m (height x width) |
| Habit: | Upright |
| Form: | Vase |
| Texture: | Medium - coarse |
| Landscape Uses: | Aquatic - ponds, Attract butterflies, Cut flower or foliage, Group or mass planting, Perennial border, Specimen plant, Spring interest, Waterside planting, Wetland - bogs |
| Exposure: | Full sun, Part sun/part shade, Filtered shade |
| Soil or Media: | Humus rich |
| Leaves: | Simple, Alternate, Leathery, Succulent, Parallel venation, Lustrous, Linear, Entire |
| Flowers: | Raceme, Yellow, May-Jun-Jul |
| Fruit: | Capsule, Brown, Aug-Sep-Oct |
| Key ID Features: | |
| Leaves to 1.3m, thick, medium-green and fleshy at the base; flower cluster to 15cm wide; fruit a large showy capsule. | |