Data specific to Irises (Edit)
Hybridizer: Ferdinand Cayeux
Year Of Registration: 1928
Year Of Introduction (May Differ From Registry): 1928
Classification: Tall Bearded (TB)
Bloom Season: Mid Late
Bloom Color Classification: Wine
Flower Patterns: Bitone

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: Imperator X Medrano
Child plants: 7 child plants

Image
Common names
  • Tall Bearded Iris
  • Iris

Photo Gallery
Location: Santa Cruz Mountains, California
Date: 2017-05-11
Location: Santa Cruz Mountains, California

Date: c. 1940
illustration from Robert Wayman's 1940 catalog, Bayside, New York
Location: Santa Cruz Mountains, California
Date: 2018-05-09
Location: Catheys Valley CA
Photo courtesy of Superstition Iris Gardens, posted with permissi

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