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Bronze Fennel

Foeniculum vulgare (fin-ICK-yoo-lum vul-GAR-eh)

Family: Apiaceae Non-native Herbaceous (3-15 ft)

Fennel is an evergreen, herbaceous perennial, normally grown as an annual, with flowers and leaves that have a sweet, mildly anise or licorice flavor. The flowers bloom in summer and are often used in egg and fish dishes. The aromatic seeds are also put to use in cakes and breads. It has an upright, branching habit and can grow 3 to 5 feet high with aromatic, yellow-green leaves and tiny yellow flowers. The flowers are very attractive to butterflies and fennel is a larval plant for certain swallowtail butterflies. The genus name comes from the Latin name for this potherb which, in Italian, is called finocchio . The species name means common. Fennel is grown across a wide range of USDA hardiness zones and does best in moist, organically rich, well-drained soils in full sun. It will tolerate clay and sandy soils and, once established, drought. Fennel can be grown from seed sown directly in the garden in spring and it freely self-seeds in the garden. Fennel plants are know to have escaped gardens and naturalized. To prevent an unwanted spread of this plant through self-seeding, you should remove spent flowers and stems before seed is produced. Click here to see a calendar of planting schedules, time-to-harvest, and recommended spacing. Diseases, Insect Pests, and Other Plant Problems: No serious insect or disease problems. Stem and root rot can occur in poorly-drained soils and aphids and slugs can be a problem. VIDEO Created by Laura Barth for "Vegetables, Herbs, Fruits, and Nuts," a plant identification course developed in partnership with Longwood Gardens.

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 50 attributes.

How it fits the guild

Guild layer 4 - Herbaceous (3-15 ft) Optimal soil pH Acid (<6.0); Alkaline (>8.0); Neutral (6.0-8.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Full plant profile

Growing Conditions
Plant type
Edible; Herb; Herbaceous Perennial
Life cycle
Perennial
USDA zones
4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Light
Full sun (6 or more hours of direct sunlight a day)
Soil texture
Clay; High Organic Matter; Loam (Silt); Sand
Soil pH
Acid (<6.0); Alkaline (>8.0); Neutral (6.0-8.0)
Soil drainage
Good Drainage | Moist | Occasionally Dry
Available space
Less than 12 inches
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 4 ft. 0 in. - 6 ft. 0 in. | Width: 1 ft. 6 in. - 3 ft. 3 in.
Maintenance
Low
Canopy layer
4 - Herbaceous (3-15 ft)
Form & Appearance
Habit / form
Erect; Multi-stemmed; Spreading
Texture
Fine
Leaf color
Gold/Yellow; Green
Leaf type
Compound (Pinnately , Bipinnately, Palmately)
Leaf value
Edible; Fragrant
Hairs present
No
Leaf detail
Feathery, compound, aromatic, yellow-green leaves with needle-like segments.
Flower color
Gold/Yellow
Flower value
Edible; Showy
Flower form
Umbel
Flower detail
Tiny yellow flowers in large, flattened, compound umbels bloom from June to August.
Bloom time
Summer
Fruit color
Green; White
Fruit value
Edible; Fragrant
Fruit detail
Aromatic seeds follow the flowers in late summer, early fall.
Stem color
Green
Wildlife & Ecology
Native status
Non-native
Origin
Southern Europe and the Mediterranean
Distribution
Worldwide
Wildlife value
Attracts bees and other beneficial insects, feeds caterpillars that morph into swallowtail butterflies.
Attracts
Bees; Butterflies; Pollinators; Predatory Insects
Play value
Wildlife Food Source
Food & Medicine
Edible parts
Fruit
Harvest time
Fall

Uses (ethnobotany)

Shoots can be used to make a yellow dye.

Landscape Use
Landscape theme
Butterfly Garden; Edible Garden; Pollinator Garden
Design feature
Border
Garden tags
#swallowtail butterflies #pollinator plant #butterfly friendly #non-toxic for cats #non-toxic for horses #non-toxic for dogs #bee friendly #vhfn-h #vhfn #early childhood #dye plant #herbaceous perennial #edible seeds #edible leaves #edible flowers #buncombe county sun and shade garden #wildlife friendly #herb garden #th-taste #th-smell #child #children #preschool #early care #easy edibles #edible #beneficial insects #microgreens #th-touch #th-sowing #th-wildlife
Problems & Resistance
Resistant to
Deer; Diseases; Drought; Heat; Humidity; Insect Pests; Poor Soil
Propagation
Seed

Planted at Hunnicutt

Nobody’s planted this one yet.