Photo: zebedeugalinhaCC BY 4.0via iNaturalistresized / cropped
Three-leafed hog's fennel Plant Care
Prangos trifida (Mill.) Herrnst. & Heyn
Updated · Sources · How we source care data
Prangos trifida is easily recognized by its delicate, lacy foliage that adds a unique texture to any garden. Originating from the mountainous regions of Central Asia, this plant is highly sought after by collectors for its rare beauty and ability to thrive in harsh conditions. With its intricate leaves and exotic origins, it's easy to see why Prangos trifida is a prized addition to any plant enthusiast's collection.
Every 7–10 days
Full sun to partial shade
50–80°F
40–70%
At a glance
How do you care for Three-leafed hog's fennel?
Water Three-leafed hog's fennel every 7–10 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 Three-leafed hog's fennel Native To?
What Is the Three-leafed hog's fennel?
Three-leafed hog's fennel (Prangos trifida) belongs to the Apiaceae family within the Prangos genus. Three-leafed hog's fennel is native to southern Europe. Three-leafed hog's fennel is also known as Indian carrot.
Three-leafed hog's fennel displays a clumping herbaceous perennial growth habit, reaching up to 2 ft tall with a spread of approximately 1.5 ft. Three-leafed hog's fennel produces small clusters of white or pink umbels.
Leaf size: approximately 4 inches.
How Often Should You Water a Three-leafed hog's fennel?
Prangos trifida requires watering every 7–10 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 7–10 days
Let soil partially dry between waterings
What Light Does the Three-leafed hog's fennel Need?
Three-leafed hog's fennel thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Three-leafed hog's fennel Prefer?
Prangos trifida grows best at temperatures of 50–80°F. Three-leafed hog's fennel prefers humidity levels of 40–70%.
Temperature
50–80°F
Humidity
40–70%
What Soil Mix Works Best for a Three-leafed hog's fennel?
Well-draining sandy loam with added organic matter for moisture retention. Good drainage is essential for Three-leafed hog's fennel to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Three-leafed hog's fennel?
Feed Three-leafed hog's 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 Three-leafed hog's fennel?
Repot every 1-2 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 Three-leafed hog's fennel?
Three-leafed hog's fennel can be propagated through seeds, division of root clumps. Similar propagation techniques also apply to prangos plant care, which shares the same genus.
Is the Three-leafed hog's fennel Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Three-leafed hog's 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 Three-leafed hog's fennel?
Three-leafed hog's 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 Three-leafed hog's fennel Need?
Three-leafed hog's fennel grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Three-leafed hog's fennel is native to southern Europe. In cooler regions, grow Three-leafed hog's fennel as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Three-leafed hog's 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 Prangos genus — compare its care with other Prangos species on PlantoScan.
Prangos is part of the Apiaceae plant family — browse all Apiaceae genera and species.
Three-leafed hog's fennel thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Prangos trifida (Mill.) Herrnst. & Heyn, family Apiaceae (first published in Boissiera 26: 58 (1977)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Three-leafed hog's 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: zebedeugalinha, CC BY 4.0, iNaturalist — original.
- Hardiness zone: USDA Zone 12a, calculated from the plant's minimum temperature.
- 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.
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