General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Water Preferences: Mesic
Dry Mesic
Dry
Minimum cold hardiness: Zone 8b -9.4 °C (15 °F) to -6.7 °C (20 °F)
Plant Height: 6 to 12 feet (2.4-3.7m)
Plant Spread: 36 to 42 inches (91-107cm)
Leaves: Unusual foliage color
Other: Leaves very finely divided
Flowers: Showy
Flower Color: Yellow
Flower Time: Late spring or early summer
Wildlife Attractant: Butterflies
Resistances: Drought tolerant
Propagation: Seeds: Self fertile
Pollinators: Hoverflies
Wasps
Beetles
Moths and Butterflies
Flies
Bees
Various insects
Miscellaneous: Monocarpic
Goes Dormant

Image
Common names
  • Giant Fennel

Photo Gallery
Uploaded by kreemoweet
Uploaded by kreemoweet
Location: Parc de Saleccia - Corsica - France
Date: 2024-04-25
Location: Bide A Wee cottage garden, Northumberland, UK
Date: 2013-06-26
Developing flowers
Location: Crete - Rethymno
Date: 2022-05-29
Location: Botanical Garden of Dresden
Date: 2014-05-09
Location: Etang de Biguglia - Corsica - France
Date: 2024-04-30
Location: Bide A Wee cottage garden, near Morpeth, Northumberland, UK
Date: 2015-05-16
Location: Rabat, Spain
Date: 05/25/2014
photo by 九间 via Flickr: https://www.flickr.com/photos/smallor
Location: Crete - Rethymno
Date: 2022-05-29

Credit: Fotograf: Eckard Wolff-Postler
Location: Parc de Saleccia - Corsica - France
Date: 2024-04-25

Photo courtesy of Annie's Annuals and Perennials
  • Uploaded by Joy
Location: Golan Heights, Israel
Location: Parc de Saleccia - Corsica - France
Date: 2024-04-25
Location: Bide A Wee cottage garden, Northumberland, UK
Date: 2013-06-26

photo by ghislain118
Location: Bide A Wee cottage garden, near Morpeth, Northumberland, UK
Date: 2013-07-17
Comments:
  • Posted by CarolineScott (Calgary - Zone 4a) on May 17, 2015 6:14 AM concerning plant:
    The database entry says it is perennial in milder climates, but it is monocarpic?
    Does this mean it does NOT flower in the first summer? or does it behave more like an annual?

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