Wild Fennel

Herbaceous

Wild Fennel

Foeniculum vulgare

Also known as: Sweet Fennel, Bronze Fennel (selected forms)

Herbaceous Apiaceae EdibleMedicinalPollinatorWildlife AttractorBorder PlantDynamic Accumulator
Hardiness Zone
5-11
Ideal Temp
50–90°F
Survives Down To
15°F
Life Cycle
Perennial

Wild fennel is fennel that stopped asking permission — perennial crowns in mild climates, anise perfume, yellow umbels that swallow swallowtails. Pollen, seeds, and young shoots enter kitchens; older stems get woody. It is listed invasive in parts of the world; in subtropical and tropical Americas manage spread if you plant the fertile type, or use bulbing selections where you need manners. Sun and drainage make the difference between lush and sulky. It pairs with Mediterranean herbs but keep it away from dill if you are saving either for seed — cross-pollination makes boring offspring. ☀️💧 Sun and Water: - Full sun. - Well-drained average to poor soil; over-fertilized fluff attracts aphids. - Drought-tolerant once established; water young plants. ✂️ Propagation: - Seed (fresh is best). - Division of crowns in cool weather.

Good Neighbors
  • Olive
  • Sage
  • Yarrow
Cautions
  • Dill
Known Threats — Organic Solutions Only
Aphids
Aphidoidea
Carrot Fly
Psila rosae
Carrot Rust Fly
Psila rosae
Carrot Weevil
Listronotus oregonensis
Caterpillars
Lepidoptera Larvae
Celery Leaf Miner
Gracillariidae sp.
Dill Worms
Lepidoptera larva
Parsnip Canker
Sclerotinia sclerotiorum
Swallowtail Caterpillar
Papilio polyxenes