Japanese Phtheirospermum Plant Care
Phtheirospermum japonicum (Thunb.) Kanitz
Updated · Sources · How we source care data
Phtheirospermum is a monotypic genus of flowering plants belonging to the family Orobanchaceae. The only species is Phtheirospermum japonicum, which is hemiparasitic and often used as a model species to study plant parasitism.
Bright indirect light
At a glance
How do you care for Japanese Phtheirospermum?
Japanese Phtheirospermum grows best in bright indirect light.
What Is the Japanese Phtheirospermum?
Japanese Phtheirospermum (Phtheirospermum japonicum) belongs to the Orobanchaceae family within the Phtheirospermum genus.
Japanese Phtheirospermum displays a low rosette, spreading growth habit, reaching up to tall with a spread of approximately . Japanese Phtheirospermum produces small tubular flowers in shades of pink, purple, or white.
What Light Does the Japanese Phtheirospermum Need?
Japanese Phtheirospermum thrives in bright indirect light. Avoid placing Japanese Phtheirospermum in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect light
What Soil Mix Works Best for a Japanese Phtheirospermum?
Well-draining sandy soil mix with high organic content. Good drainage is essential for Japanese Phtheirospermum to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Japanese Phtheirospermum?
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 Japanese Phtheirospermum?
Japanese Phtheirospermum can be propagated through seeds, division of offsets.
Is the Japanese Phtheirospermum Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Japanese Phtheirospermum, 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 Phtheirospermum?
Japanese Phtheirospermum is susceptible to aphids, spider mites, mealybugs. 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.
Keep exploring plants
Japanese Phtheirospermum 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 Phtheirospermum genus — compare its care with other Phtheirospermum species on PlantoScan.
Phtheirospermum is part of the Orobanchaceae plant family — browse all Orobanchaceae genera and species.
Japanese Phtheirospermum 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: Phtheirospermum japonicum (Thunb.) Kanitz, family Orobanchaceae (first published in Exp. Asiae Orient. : 12 (1878)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Japanese Phtheirospermum, 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.
- 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
Japanese Phtheirospermum 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