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July 30, 2026Short & citedBlog
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Field Notes • Botany

Fennel

Fennel (*Foeniculum vulgare*) is a flowering plant in the carrot family (Apiaceae) native to the Mediterranean region and naturalized in many other parts of the world.

Updated July 30, 20261 min readCited sources

Fennel is a flowering plant in the carrot family (Apiaceae), native to the Mediterranean region. It is grown for its feathery foliage, aromatic seeds, and edible bulb-like base in some varieties.

What it is

Fennel (Foeniculum vulgare) is a perennial herb often treated as an annual in cooler climates. It has finely divided, feathery leaves, hollow stems, and clusters of small yellow flowers. The plant is native to southern Europe and the Mediterranean, and has naturalized in many temperate regions, including dry coastal areas and riverbanks.

Uses and flavour

The leaves, stems, tender shoots, seeds, and in some cultivated forms the bulb-like base are all used in cooking. Its flavour is sweet and anise-like due to compounds including anethole. Fennel is also grown as an ornamental plant.

Cultivation in Canada

Fennel is commonly grown in Canadian gardens, especially in warmer or sheltered locations. Because it is not reliably winter-hardy in all Canadian climates, gardeners often treat it as an annual. Some fennel varieties are considered invasive in parts of Australia and the United States, but this is less of a concern in Canada.

In short

  • Fennel belongs to the carrot or parsley family (Apiaceae).
  • Its flavour is described as anise-like or licorice-like due to anethole.
  • Leaves, seeds, stems, and the bulb-like base are used in cooking.
  • Some fennel varieties are considered invasive in parts of Australia and the United States.
Canadian angle

Fennel is commonly grown in Canadian gardens and sold as an herb or vegetable, especially in warmer or sheltered locations. Because it is not reliably winter-hardy in all Canadian climates, gardeners often treat it as an annual.[2][11]

Quick questions

What is fennel?
Fennel is a flowering plant species, Foeniculum vulgare, in the Apiaceae family, grown for its aromatic foliage, seeds, and edible parts.
What does fennel taste like?
Fennel has a sweet, anise-like or licorice-like flavour and aroma.
Is fennel invasive?
Some populations are considered invasive in parts of Australia and the United States.

Sources

  1. Wikipediahttps://en.wikipedia.org/wiki/Fennel
    Supports: Species name, family, native range, general description, culinary use.
  2. University of Wisconsin Extensionhttps://hort.extension.wisc.edu/articles/fennel-foeniculum-vulgare/
    Supports: Plant type, hardiness, native region, aromatic compounds, culinary uses.
  3. Nature Collectivehttps://naturecollective.org/plant-guide/details/fennel-non-indigenous/
    Supports: Morphology, size, flowers, native range, habitat, family.
  4. Encyclopaedia Britannicahttps://www.britannica.com/plant/fennel
    Supports: Description, native range, cultivation, invasive status.
  5. NC State Extensionhttps://plants.ces.ncsu.edu/plants/foeniculum-vulgare/
    Supports: Plant habit, height, leaf and flower description, culinary uses.
  6. University of Arkansas Extensionhttps://www.uaex.uada.edu/yard-garden/resource-library/plant-week/fennel-9-16-11.aspx
    Supports: Growth habit, height, taprooted crown.
  7. Royal Horticultural Societyhttps://www.rhs.org.uk/herbs/fennel/grow-your-own
    Supports: Plant form, flavour, hardiness, common and bronze forms, relationship to Florence fennel.
  8. University of California Agriculture and Natural Resourceshttps://ucanr.edu/sites/default/files/2025-04/FactSheet_Herb_Fennel_2021.01.11.pdf
    Supports: Two main types: herb fennel and Florence fennel.