General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Plant Height: 15 cm in bloom
Plant Spread: 10 cm
Leaves: Malodorous
Flowers: Showy
Flower Color: Blue
Bloom Size: Under 1"
Flower Time: Summer
Underground structures: Bulb
Dynamic Accumulator: K (Potassium)
Ca (Calcium)
Na (Sodium)
Propagation: Seeds: Stratify seeds
Propagation: Other methods: Division
Pollinators: Bees
Various insects
Containers: Suitable in 3 gallon or larger
Awards and Recognitions: RHS AGM

Image
Common names
  • Dark Blue Garlic
  • Flowering Onion
  • Ornamental Onion

Photo Gallery
Location: Wallsend, Tyne and Wear, England
Date: August
Allium Cyaneum posy

Date: August 15, 2006
photo by John Jearrard via: http://www.johnjearrard.co.uk/plants/
Location: Wrocław University Botanical Garden, Wrocław, Poland
Date: August 7, 2020
photo by Agnieszka Kwiecień (Nova) via Wikimedia Commons: https:
Photo by robertduval14
Location: My garden, Calgary, Alberta, Canada; zone 3.
Date: 2013-08-18
Photo by robertduval14
Location: My garden, Calgary, Alberta, Canada; zone 3.
Date: 2013-08-14
Comments:
  • Posted by sedumzz (Fairfax VA - Zone 7a) on Jan 28, 2022 8:50 AM concerning plant:
    Allium cyaneum

    The epithet "cyaneum" refers to the deep blue flower of this plant.

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