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botanical name:
Iris sibirica 'Butter and Sugar'
Iris sibirica 'Butter and Sugar' © Deeproot Plant Base
common name:  Siberian Iris
family:  Iridaceae
characteristics: perennial
height: 0.75m
width: 0.30m
growth rate: fast
growth habit: clump
leaf colour: green
flower colour: yellow
main season: Summer
poison symbol poisonous or irritant
aspect: full sun, part shade
conditions: moist soil, wet/waterlogged soil, clay soil, sandy soil
preferred soil pH: neutral-acid
minimum temp: -29°C
USDA zone: 5 to 8
description:
Elegant, relatively large flowers with white standards and pale creamy yellow falls that are held horizontally. Clump forming with erect narrow leaves.

cultivation:
Best in moist well drained, neutral to slightly acid soil, will also grow in boggy condition near water. Full sun or part shade.

propagation:
By division of clumps.

other notes:
Bred by Dr. Currier McEwen, South Harpswell, Maine, USA

RHS AGM

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