Plagiorhegma dubium Plant Care
Plagiorhegma dubium Maxim.
Updated · Sources · How we source care data
Plagiorhegma is a monotypic genus of flowering plants belonging to the family Berberidaceae. The only species is Plagiorhegma dubium, the Asian twinleaf.
Every 7–10 days
Partial to full shade
60–75°F
40–60%
At a glance
How do you care for Plagiorhegma dubium?
Water Plagiorhegma dubium every 7–10 days, letting the top layer of soil dry out between waterings, and give it partial to full 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 Plagiorhegma dubium?
Plagiorhegma dubium (Plagiorhegma dubium) belongs to the Berberidaceae family within the Plagiorhegma genus.
Plagiorhegma dubium displays a clumping perennial growth habit, reaching up to 1.5 ft tall with a spread of approximately 1.5 ft. Plagiorhegma dubium produces small, delicate flowers in shades of pink and white.
Leaf size: approximately 4 inches.
How Often Should You Water a Plagiorhegma dubium?
Plagiorhegma dubium 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 Plagiorhegma dubium Need?
Plagiorhegma dubium thrives in partial to full shade. The optimal light range is 100–500 lux. Avoid placing Plagiorhegma dubium in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Partial to full shade
100–500 lux
What Temperature and Humidity Does the Plagiorhegma dubium Prefer?
Plagiorhegma dubium grows best at temperatures of 60–75°F. Plagiorhegma dubium prefers humidity levels of 40–60%.
Temperature
60–75°F
Humidity
40–60%
What Soil Mix Works Best for a Plagiorhegma dubium?
Rich, well-draining soil with high organic content. Good drainage is essential for Plagiorhegma dubium to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Plagiorhegma dubium?
Feed Plagiorhegma dubium 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 Plagiorhegma dubium?
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 Plagiorhegma dubium?
Plagiorhegma dubium can be propagated through division, seeds.
Is the Plagiorhegma dubium Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Plagiorhegma dubium, 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 Plagiorhegma dubium?
Plagiorhegma dubium is susceptible to aphids, spider mites, scale insects. 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 Plagiorhegma dubium Need?
Plagiorhegma dubium grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. In cooler regions, grow Plagiorhegma dubium as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Plagiorhegma dubium 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 Plagiorhegma genus — compare its care with other Plagiorhegma species on PlantoScan.
Plagiorhegma is part of the Berberidaceae plant family — browse all Berberidaceae genera and species.
Plagiorhegma dubium copes with lower light than most plants — browse the full list of low-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Plagiorhegma dubium Maxim., family Berberidaceae (first published in Mém. Acad. Imp. Sci. St.-Pétersbourg Divers Savans 9: 34 (1859)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Plagiorhegma dubium, 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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