Japanese Hogfennel Plant Care
Peucedanum japonicum Thunb.
Updated · Sources · How we source care data
Peucedanum japonicum, also known as coastal hog fennel, is a species of Peucedanum, a genus rich in medicinal species belonging to the parsley family, Apiaceae.
Every 7–10 days
Full sun to partial shade
60–75°F
40–60%
At a glance
How do you care for Japanese Hogfennel?
Water Japanese Hogfennel 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 60–75°F (16–24°C) and 40–60% humidity. Fertilize it every 6 months during the growing season.
What Is the Japanese Hogfennel?
Japanese Hogfennel (Peucedanum japonicum) belongs to the Apiaceae family within the Peucedanum genus.
Japanese Hogfennel displays an upright, clumping perennial growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Japanese Hogfennel produces small clusters of white or yellow flowers in umbels.
Leaf size: approximately 6 inches.
How Often Should You Water a Japanese Hogfennel?
Peucedanum japonicum 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 Japanese Hogfennel Need?
Japanese Hogfennel thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Japanese Hogfennel Prefer?
Peucedanum japonicum grows best at temperatures of 60–75°F. Japanese Hogfennel prefers humidity levels of 40–60%.
Temperature
60–75°F
Humidity
40–60%
What Soil Mix Works Best for a Japanese Hogfennel?
Well-draining loamy soil with added organic matter for nutrients. Good drainage is essential for Japanese Hogfennel to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Japanese Hogfennel?
Feed Japanese Hogfennel 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 Japanese Hogfennel?
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 Japanese Hogfennel?
Japanese Hogfennel can be propagated through seeds, division of root ball. Similar propagation techniques also apply to heart-leaved alexanders plant care, which shares the same genus.
Is the Japanese Hogfennel Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Japanese Hogfennel, 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 Japanese Hogfennel?
Japanese Hogfennel is susceptible to aphids, caterpillars, spider mites. 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 Japanese Hogfennel Need?
Japanese Hogfennel grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. In cooler regions, grow Japanese Hogfennel as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Japanese Hogfennel 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 Peucedanum genus — compare its care with other Peucedanum species on PlantoScan.
Peucedanum is part of the Apiaceae plant family — browse all Apiaceae genera and species.
Japanese Hogfennel thrives in bright light and direct sun — see other bright-light plants.
More Peucedanum Species
Other Peucedanum species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Peucedanum japonicum Thunb., family Apiaceae (first published in Syst. Veg., ed. 14 (J. A. Murray). 280. 1784 [May-Jun 1784]) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Japanese Hogfennel, 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.
- Hardiness zone: USDA Zone 13a, 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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