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botanical name:
Iris unguicularis 'Walter Butt'
Iris unguicularis 'Walter Butt' © Deeproot Plant Base
common name:  Algerian Iris
synonyms:  Iris stylosa
family:  Iridaceae
characteristics: perennial, evergreen, scented/aromatic
height: 0.30m
width: 0.30m
growth rate: medium
growth habit: grassy
leaf colour: green
flower colour: light blue
main season: Winter
poison symbol poisonous or irritant
aspect: full sun
conditions: dry soil, moist soil
preferred soil pH: neutral-alkaline
minimum temp: -18°C
USDA zone: 8 to 9
Large, strongly scented, pale, almost greyish, lavender-blue flowers, produced during winter. This is one of the earliest flowering cultivars, sometimes in late autumn. Tough grass like evergreen leaves

Thrives best in a sunny, well-drained position, even in poor dry conditions, such as the base of a south facing wall. Sharply drained neutral to alkaline soil.

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