Photo: kirinziCC BY 4.0via iNaturalistresized / cropped
Stinking Fennel Plant Care
Ferula foetida Regel
Updated · Sources · How we source care data
This plant is recognizable by its strikingly large and feathery leaves that can grow up to 8 feet tall. Originating from the Mediterranean region, it is highly sought after by plant collectors for its unique appearance and strong, distinctive scent. Its unusual growth habit and ability to attract pollinators make it a standout addition to any collection.
Every 7–14 days
Full sun to partial shade
50–80°F
40–70%
At a glance
How do you care for Stinking Fennel?
Water Stinking Fennel every 7–14 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 50–80°F (10–27°C) and 40–70% humidity. Fertilize it every 6 months during the growing season.
Where Is the Stinking Fennel Native To?
What Is the Stinking Fennel?
Stinking Fennel (Ferula foetida) belongs to the Apiaceae family within the Ferula genus. Stinking Fennel is native to Central Asia, Eastern Iran, western Afghanistan and western Pakistan. Stinking Fennel is also known as Férule fetide.
Stinking Fennel displays a tall, upright herbaceous perennial growth habit, reaching up to 5 ft tall with a spread of approximately 2 ft. Stinking Fennel produces large umbels of tiny yellow flowers.
Leaf size: approximately 12 inches.
How Often Should You Water a Stinking Fennel?
Ferula foetida requires watering every 7–14 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 7–14 days
Let soil partially dry between waterings
What Light Does the Stinking Fennel Need?
Stinking Fennel thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Stinking Fennel Prefer?
Ferula foetida grows best at temperatures of 50–80°F. Stinking Fennel prefers humidity levels of 40–70%.
Temperature
50–80°F
Humidity
40–70%
What Soil Mix Works Best for a Stinking Fennel?
Well-draining sandy loam with added organic matter for nutrients. Good drainage is essential for Stinking Fennel to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Stinking Fennel?
Feed Stinking Fennel every 6 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Stinking Fennel?
Repot every 2-3 years in early spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Stinking Fennel?
Stinking Fennel can be propagated through seeds, division of offsets. Similar propagation techniques also apply to ammoniac gum plant care, which shares the same genus.
Is the Stinking Fennel Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Stinking Fennel, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Stinking Fennel?
Stinking Fennel is susceptible to aphids, spider mites, caterpillars. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Stinking Fennel Need?
Stinking Fennel grows outdoors in USDA Zone 7a – 9b. It survives winters down to planting zone 7a. Stinking Fennel is native to Central Asia, Eastern Iran, western Afghanistan and western Pakistan.
Hardiness Zone
Zone 7a – 9b
Keep exploring plants
Stinking Fennel is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Ferula genus — compare its care with other Ferula species on PlantoScan.
Ferula is part of the Apiaceae plant family — browse all Apiaceae genera and species.
Stinking Fennel thrives in bright light and direct sun — see other bright-light plants.
More Ferula Species
Other Ferula species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Ferula foetida Regel, family Apiaceae (first published in Trudy Imp. S.-Peterburgsk. Bot. Sada 5: 592 (1877)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Stinking Fennel, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Photo: kirinzi, CC BY 4.0, iNaturalist — original.
- Hardiness zone: USDA Zone 7a – 9b, estimated from the plant's typical growing conditions.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
Identify Plants Like the
Stinking Fennel Instantly
Scan any plant with your phone camera and get instant ID, care tips, water and fertilizer reminders, and health checks — all in one app.
Free
to download
iOS & Android
platforms
Light & dark
mode
100,000+
species