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Key characteristics

Classification: Tall Bearded Iris (TB), Reverse Amoena
Height: 3 to 3 1/2 feet
Width: 1 1/2 to 2 feet
Flower color: Lavender-blue and pale blue washed with soft golden yellow
Foliage color: Medium green, upright, sword-shaped foliage
Bloom time: Early midseason
Light: Full sun
Water: Moderate, drought tolerant once established
Growing zone: USDA zones 4 to 8

Irises

Iris 'Collusion'

Collusion Iris

Iris 'Collusion' is a tall bearded iris with softly ruffled flowers that open in early midseason. Lavender-blue standards deepen toward their bases with subtle mauve shading, while the falls blend pale blue with a translucent wash of warm yellow. Fine golden veining spreads across the lower petals, with touches of purple appearing deeper in the throat. Golden-bronze beards add warmth at the center. Upright, sword-shaped green foliage forms tidy fans beneath the flowering stems.

Light

Full sun

Water

Moderate, drought tolerant once established

Bloom time

Early midseason

Find this plant

Works well in

Cottage Gardens
Borders
Cut Flower Gardens
Walkways
Waterwise Gardens

Companion plants

Dwarf ceanothus · Shrub cinquefoil · Catmint · Golden yarrow · Perennial geranium · Blue oat grass · Creeping baby's breath

Design tip

Use 'Collusion' where its subtle color blending can be viewed at close range rather than across a large garden. Nearby blue-grey foliage can reinforce its cooler tones, while small touches of yellow elsewhere in the planting draw out the warmth in the falls.