Alphabetical Plant Listing

Iris douglasiana 'Canyon Snow' (Douglas Iris)

Douglas Iris 'Canyon Snow', Mountain Iris 'Canyon Snow', Western Iris 'Canyon Snow', Pacific Coast Hybrid Iris 'Canyon Snow'


Introduced in 1975 by the Santa Barbara Botanic Garden, Iris douglasiana 'Canyon Snow' (Douglas Iris) is a slowly spreading, rhizomatous evergreen perennial forming clumps of sword-shaped, bright shiny green leaves. Branched stems rise from the clumps in spring, each of them boasting large orchid-like flowers, 4-5 in. across (10-12 cm), adorned with brilliant yellow markings on each petal. Very handsome in and out of bloom, Douglas Iris truly enjoys meadow settings. Perfect for tucking into rock gardens or to edge woodland borders.

  • Winner of the prestigious Mitchell Award from the American Iris Society.
  • Grows up to 1-2 ft. tall (30-60 cm) and 2-4 ft. wide (60-120 cm). Will self-sow and form large clumps.
  • Performs best in full sun to part shade in heavy soils with organic matter. Water every 2-4 weeks in summer if not planted next to a creek or in a naturally wet area. More drought tolerant near the coast as a result of the cooler temperatures and fog.
  • Increase by rhizome divisions (late fall or early spring).
  • Deer resistant.

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Requirements

Hardiness 7 – 9
Heat Zones 7 – 9
Climate Zones 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Iris - Other
Exposure Full Sun, Partial Sun
Season of Interest Spring (Early,Mid,Late)
Height 1' – 2' (30cm – 60cm)
Spread 2' – 4' (60cm – 120cm)
Spacing 36" – 48" (90cm – 120cm)
Water Needs Low
Maintenance Low
Soil Type Clay, Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Well-Drained
Characteristics Plant of Merit, Showy, Evergreen
Tolerance Deer
Attracts Butterflies
Garden Uses Ground Covers
Garden Styles Coastal Garden, Gravel and Rock Garden, Informal and Cottage, Mediterranean Garden

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Vahe Martirosyan, Flickr

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 7 – 9
Heat Zones 7 – 9
Climate Zones 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Iris - Other
Exposure Full Sun, Partial Sun
Season of Interest Spring (Early,Mid,Late)
Height 1' – 2' (30cm – 60cm)
Spread 2' – 4' (60cm – 120cm)
Spacing 36" – 48" (90cm – 120cm)
Water Needs Low
Maintenance Low
Soil Type Clay, Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Well-Drained
Characteristics Plant of Merit, Showy, Evergreen
Tolerance Deer
Attracts Butterflies
Garden Uses Ground Covers
Garden Styles Coastal Garden, Gravel and Rock Garden, Informal and Cottage, Mediterranean Garden

Great Plant Combination Ideas with Iris - Other

Guides with Iris - Other

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