Fennel (Foeniculum vulgare) is a hardy perennial herb in the carrot family, grown for its feathery, aniseed-flavoured leaves and seeds, and for Florence fennel's swollen bulb. Give it full sun and well-drained soil, and it is easy to grow outdoors.
Family
Apiaceae (Carrot family)
Grows as
Bulb, Perennial
Light
Full sun
Water
Water regularly while establishing, then moderately; it tolerates dry soil once mature.
10–25 °C; hardy to about -10 °C as a perennial, with the foliage dying back in winter.
How easy
Easy
Safety
Not known to be toxic. Not toxic to cats or dogs (ASPCA).
Edible
Yes, some parts
Native range
Medit. to Ethiopia and W. Nepal
Climate
temperate
About
Fennel (Foeniculum vulgare) is a flowering plant species in the carrot family. It is a hardy, perennial herb with yellow flowers and feathery leaves. It is indigenous to the shores of the Mediterranean but has become widely naturalized in many parts of the world, especially on dry soils near the sea coast and on riverbanks.
It is a highly flavorful herb used in cooking and, along with the similar-tasting anise, is one of the primary ingredients of absinthe. Florence fennel or finocchio (UK: , US: , Italian: [fiˈnɔkkjo]) is a selection with a swollen, bulb-like stem base (sometimes called bulb fennel) that is used as a vegetable.
How to grow it
Fennel is widely cultivated, both in its native range and elsewhere, for its edible, strongly flavored leaves and fruits. Its aniseed or licorice flavor comes from anethole, an aromatic compound also found in anise and star anise, and its taste and aroma are similar to theirs, though usually not as strong.
Florence fennel (Foeniculum vulgare Azoricum Group; syn. F. vulgare var. azoricum) is a cultivar group with inflated leaf bases which form a bulb-like structure. It is of cultivated origin, and has a mild anise-like flavor but is sweeter and more aromatic. Florence fennel plants are smaller than the wild type. Several cultivars of Florence fennel are also known by several other names, notably the Italian name finocchio. In North American supermarkets, it is often mislabeled as "anise."
Text excerpted from the Wikipedia article Fennel by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.