Yellow flag
Iris pseudacorus

Common Name: Yellow flag
Genus: Iris
Species: pseudacorus
Category: Aquatic & Bog Garden Plants
Growth Rate: Fast growing
Hardiness: Hardy | Height: 1.50 m (150 cm) |
Sun/Shade: Full sun or Partial shade | Spread: 5.00 m (500 cm) |
Foliage Type: Deciduous | Flower Colour: Yellow |
Foliage Colour: Green, Grey/Silver | Flowering Period: July & August |
Soil Type: Clay/Heavy
Soil Moisture: Moist, but well drained or Boggy, poorly drained
- Depth of water: 5-25cm (2-10in)
- Other features: all parts of the plant may cause severe discomfort if ingested
Sulphur yellow flowers often with brown or violet markings in July and August and ribbed grey-green leaves. This native yellow flag iris was once commonly found on marshy land and riversides. Ideal for planting at the margins of a large lake or pool it flourishes in deep acid soil enriched with well-rotted organic matter. - Garden care: Divide large clumps immediately after flowering.
- Goes well with: Iris laevigata, Acorus calamus, Carex elata 'Aurea', Typha minima, Juncus effusus f. 'Spiralis', Sisyrichium californicum.
Similar Plants:

Bearded iris
Iris 'Mer du Sud'
Iris orientalis ‘Shelford Giant’
Iris orientalis 'Shelford Giant'
Iris pallida
Iris pallida
Related Articles: