Bupleurum stenophyllum Plant Care
Bupleurum stenophyllum (Nakai) Kitag.
Updated · Sources · How we source care data
Bupleurum stenophyllum is a species of Bupleurum native to Japan, Korea, and mainland China; it is also introduced to Taiwan. Its root is used as a traditional medicine in East Asia known as Radix Bupleuri (柴胡).
Every 7–14 days
Full sun to partial shade
50–75°F
40–70%
At a glance
How do you care for Bupleurum stenophyllum?
Water Bupleurum stenophyllum 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 50–75°F (10–24°C) and 40–70% humidity. Fertilize it every 6 months during the growing season.
Where Is the Bupleurum stenophyllum Native To?
What Is the Bupleurum stenophyllum?
Bupleurum stenophyllum (Bupleurum stenophyllum) belongs to the Apiaceae family within the Bupleurum genus. Bupleurum stenophyllum is native to Japan, Korea, and mainland China.
Bupleurum stenophyllum displays an upright, branching perennial growth habit, reaching up to 3 ft tall with a spread of approximately 2 ft. Bupleurum stenophyllum produces small yellow-green flowers in compound umbels.
Leaf size: approximately 4 inches.
How Often Should You Water a Bupleurum stenophyllum?
Bupleurum stenophyllum 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 Bupleurum stenophyllum Need?
Bupleurum stenophyllum thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Bupleurum stenophyllum Prefer?
Bupleurum stenophyllum grows best at temperatures of 50–75°F. Bupleurum stenophyllum prefers humidity levels of 40–70%.
Temperature
50–75°F
Humidity
40–70%
What Soil Mix Works Best for a Bupleurum stenophyllum?
Well-draining loamy soil with added compost for nutrients. Good drainage is essential for Bupleurum stenophyllum to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Bupleurum stenophyllum?
Feed Bupleurum stenophyllum 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 Bupleurum stenophyllum?
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 Bupleurum stenophyllum?
Bupleurum stenophyllum can be propagated through seeds, division of root ball. Similar propagation techniques also apply to thoroughwort golden fern plant care, which shares the same genus.
Is the Bupleurum stenophyllum Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Bupleurum stenophyllum, 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 Bupleurum stenophyllum?
Bupleurum stenophyllum 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 Bupleurum stenophyllum Need?
Bupleurum stenophyllum grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Bupleurum stenophyllum is native to Japan, Korea, and mainland China. In cooler regions, grow Bupleurum stenophyllum as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Bupleurum stenophyllum 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 Bupleurum genus — compare its care with other Bupleurum species on PlantoScan.
Bupleurum is part of the Apiaceae plant family — browse all Apiaceae genera and species.
Bupleurum stenophyllum thrives in bright light and direct sun — see other bright-light plants.
More Bupleurum Species
Other Bupleurum species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Bupleurum stenophyllum (Nakai) Kitag., family Apiaceae (first published in J. Jap. Bot. 21: 99 (1947)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Bupleurum stenophyllum, 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 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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