General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Partial or Dappled Shade
Water Preferences: Mesic
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Maximum recommended zone: Zone 8b
Plant Height: 2 to 5 feet (.6-1.2m)
Plant Spread: 1 to 2 feet (30-60cm)
Flowers: Showy
Flower Color: Blue
Lavender
Purple
Bloom Size: 1"-2"
Flower Time: Summer
Underground structures: Tuber
Suitable Locations: Bog gardening
Uses: Medicinal Herb
Resistances: Deer Resistant
Rabbit Resistant
Humidity tolerant
Toxicity: Leaves are poisonous
Roots are poisonous
Fruit is poisonous
Other: All parts of this plant are extremely poisonous
Pollinators: Bees
Containers: Suitable in 3 gallon or larger

Image
Common names
  • Monkshood
  • Friar's Cap
  • Cat's Tail
  • Helmet Flower
  • Monk's Coule
  • Aconite

Photo Gallery
Location: Granite Falls, WA
Date: 2013-07-04
Location: Bayerische Alpen
Date: 2018-08-01
Location: UBC Botanical Garden.
Date: June 2005
photo by Stan Shebs
Location: The Netherlands, Heerde
Date: 2015-07-14
Location: Bayerische Alpen
Date: 2018-08-01

photo credit: H. Zell
Location: My garden in Belgium
Date: 2009-08-08
Location: Muottas Muragl, Engadin, Switzerland, altitude ca. 2400 m
Photo courtesy of:H. Zell
Location: New York
Date: June 29, 2016
Aconitum napellus
Location: Kalama, Wa.
  • Uploaded by Joy

photo credit: H. Zell
Location: Garden near Karlsruhe, Germany
Date: 2010-10-20
Photo courtesy of:H. Zell
Location: My garden in Belgium
Date: 2009-09-30
Location: Italien, Dolomiten, Sella
Photo courtesy of:Rudiger Kratz,
Location: New York
Date: 2016-06-29
Location: My Gardens
Date: Late Summer 2009
Close Up View
Location: Lucketts, Loudoun County, Virginia
Date: 2016-04-02
Emerging spring growth

Courtesy Outsidepride
  • Uploaded by vic
Location: In my garden in Kalama, Wa.
Date: 2005-10-04
  • Uploaded by Joy

photo credit: H. Zell

photo credit: H. Zell

Date: 2007-07-16
Photo courtesy of:Frank Vincentz
Location: Garden near Karlsruhe, Germany
Date: 2010-10-20
Photo courtesy of:H. Zell
Location: Garden near Karlsruhe, Germany
Date: 2010-10-20
Aconitum napellus 'Albus' Photo courtesy of:Llez
Location: Río Erendia, Leon, Spain
Photo courtesy of: David Perez
Location: Jardín botánico de las Pardines. Encamp, Andorra
Photo courtesy of:PePeEfe

Photo courtesy of: Meneerke bloem
Location:  In my garden, Gent, Belgium
Date: 22nd June 2009
Location: New York
Date: 2016-06-29
Aconitum napellus, first blooms of 2016
Location: New York
Date: June 29, 2016
Aconitum napellus, first blooms of 2016

Image Courtesy of Bloomin Designs Nursery Used with Permission
  • Uploaded by vic

Franz Eugen Kohler, Kohler's Medizinal-Pflanzen 1887

Courtesy Gardens in the Wood of Grassy Creek
  • Uploaded by vic
Location: My Garden
Date: 2013-08-09
Location: My Garden
Date: 2013-07-29
Location: Mason, New Hampshire (zone 5b)

photo credit: H. Zell
Location: Alpengarten Villacher Alpe
Date: 2014-07-11
Photo courtesy of:Hedwig Storch
This plant is tagged in:
Image

Comments:
  • Posted by pirl (Southold, Long Island, NY - Zone 7a) on Nov 26, 2013 7:52 PM concerning plant:
    When I moved them from one garden to another they did not grow large the following year. They took the entire year off and did not bloom at all.
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lovesblooms On March 1, 2020 Seeds sown
winter sow
ShawnSteve On July 7, 2022 Entered Dormancy
Seemed rather early to do so. Perhaps they'd prefer the root to not be "disturbed," since this was its' very first growing Season, which I'd transplanted, from a "bare root".
ShawnSteve On March 26, 2022 Potted up
ShawnSteve On March 26, 2022 Obtained plant
Ex. Roots & Rhizomes. Has leaves, & broken dormancy.
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