Iris pseudacorus

Yellow Flag Iris

This highly invasive, non-native wetland plant is especially showy during its short blooming period. It has been transplanted into well-watered gardens all over the world and has widely escaped. It is also used in sewage treatment because of it capacity to remove metals from wastewaters. Like cat-tails, Yellow Flag Iris colonizes into large numbers, forming very dense monotypic stands, outcompeting other plants.

Additional Information:

Height 36-50 Inches

Spread 18-36 Inches

Bloom/Seasonal Color Medium Yellow

USDA Hardiness Zone 2 - 10

Home Owner Growing and Maintenance Tips:
Should be avoided.

Characteristics & Attributes