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  • Flower colour: silver/grey x

Iris unguicularis 'Walter Butt' (Algerian iris 'Walter Butt')

Other names: Iris stylosa 'Walter Butt'

'Walter Butt' is a vigorous, rhizomatous, evergreen perennial with narrow, sword-shaped, slightly twisted, dark green leaves and, in late winter, early spring, and occasionally in late autumn, large, lavender-blue to grey flowers with yellow bands in the centre of each petal.

Ultimate spread 0.5m
max. spread
Ultimate height 0.3m
max. height
Time to ultimate size 2-5 years
to maturity
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