Data specific to Irises (Edit)
Hybridizer: Ferdinand Cayeux
Year Of Registration: 1931
Year Of Introduction (May Differ From Registry): 1931
Classification: Tall Bearded (TB)
Bloom Season: Mid
Bloom Color Classification: Silver/Grey
Violet
Flower Patterns: Bicolor

General Plant Information (Edit)
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Maximum recommended zone: Zone 9b
Flowers: Showy
Underground structures: Rhizome
Propagation: Seeds: Will not come true from seed
Propagation: Other methods: Division
Parentage: Claude Aureau x Petit Vitry
Child plants: 4 child plants

Image
Common names
  • Tall Bearded Iris
  • Iris

Photo Gallery
Location: my yard
Date: 2019
Location: Chino Valley Arizona
Date: 2022-05-05
Location: Switzerland, Merian Gardens Basel
Date: 2017-05-20
Location: Southeast Nebraska
Date: 2014-05-26
Taken in my garden, May 2014
Location: Santa Cruz Mountains, California
Date: 2016-05-13
Location: Paris, France
Date: 2015-05-27
Location: Santa Cruz Mountains, California
Date: 2020-05-11
Serenite' (Cayeux 1931)
Location: California
Date: May 2021
Location: California
Date: May 2021

Date: c. 1936
photo from the 1936 catalog, Schreiner's Iris Gardens, St Paul, M

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