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Iris pseudacorus

Also called Water Flag Iris


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Iris pseudacorus - Yellow Flag Iris

More About Iris pseudacorus

  • AKA Iris lutea
  • Bright yellow flowers
  • Brown markings at the base of each, yellow petal
  • Each stem produces multiple flowers
  • Bright green, sword-shaped leaves, 2.5 cm wide
  • Bloom Time: May to July
  • Flower Size: 10 cm

Interesting Notes:

Introduced to North America and has naturalized throughout most of Ontario. 

Zone:

2

Height:

125-150 cm

Spread:

70-90 cm

Colour:

Yellow
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Yellow Flag Iris Growing and Maintenance Tips

Grows best in moist to wet conditions, in full sun. Great plant for ponds, streams and low-lying areas. Iris psuedocorus may be aggressive once established, so location should be considered. 


Iris pseudacorus Characteristics

Full Sun
Full Sun
Fast
Fast
Deer Resistant
Deer Resistant
Low Maintenance
Low Maintenance
Bog or water garden
Bog or water garden

Soil Moisture

Wetland (Root submerged)
Moist to Wet Soils

Flowering Time

Spring
Lt. Spr-Sum
Summer

Habit

Clumping
Upright

Foliage Color

Green (dark)

Landscape uses

Naturalizing
Woodland/woods edge