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Iris sibirica 'Butter and Sugar'
© Deeproot Plant Base
common name: Siberian Iris
poisonous or irritant
full sun, part shade
moist soil, wet/waterlogged soil, clay soil, sandy soil
preferred soil pH: neutral-acid
minimum temp: -29°C
USDA zone: 5 to 8
Elegant, relatively large flowers with white standards and pale creamy yellow falls that are held horizontally. Clump forming with erect narrow leaves.
Best in moist well drained, neutral to slightly acid soil, will also grow in boggy condition near water. Full sun or part shade.
By division of clumps.
Bred by Dr. Currier McEwen, South Harpswell, Maine, USA