Ruellia Plant Care
Ruellia asperula Lindau
Updated · Sources · How we source care data
Ruellia asperula is a medicinal plant native to eastern Brazil and growing in Caatinga vegetation and Cerrado vegetation. Flowers, leaves, and roots of this plant are usually macerated and used to treat asthma, bronchitis, fever, flu, and uteral inflammation.
Bright indirect light
At a glance
How do you care for Ruellia?
Plant Ruellia in bright indirect light.
Where Is the Ruellia Native To?
What Is the Ruellia?
Ruellia (Ruellia asperula) belongs to the Acanthaceae family within the Ruellia genus. Ruellia is native to eastern Brazil and growing in Caatinga vegetation and Cerrado vegetation.
Ruellia displays a low rosette, spreading ground cover growth habit, reaching up to tall with a spread of approximately . Ruellia produces tubular flowers in shades of purple, pink, or white.
What Light Does the Ruellia Need?
Ruellia thrives in bright indirect light. Avoid placing Ruellia 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 Ruellia?
Well-draining, fertile soil with added organic matter like compost or peat moss. Good drainage is essential for Ruellia to prevent waterlogging, which leads to root rot and fungal issues.
Where Should You Plant a Ruellia?
Choose a spot with bright indirect light and well-draining, fertile soil with added organic matter like compost or peat moss. Avoid low spots where water collects after rain.
Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.
How Do You Prune a Ruellia?
Prune Ruellia while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.
If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.
How Do You Care for a Ruellia in Winter?
Water deeply in late autumn before the ground freezes, and spread a 5–8 cm (2–3 in) layer of mulch over the root zone, keeping it away from the trunk.
Young and container-grown shrubs need extra protection: roots in a pot freeze much more easily than roots in the ground.
How Do You Propagate a Ruellia?
Ruellia can be propagated through seeds, division of clumps, stem cuttings. Similar propagation techniques also apply to shortleaf ruellia plant care, which shares the same genus.
Is the Ruellia Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Ruellia, 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 Ruellia?
Ruellia is susceptible to aphids, spider mites, whiteflies. 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
Ruellia 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 Ruellia genus — compare its care with other Ruellia species on PlantoScan.
Ruellia is part of the Acanthaceae plant family — browse all Acanthaceae genera and species.
Ruellia thrives in bright light and direct sun — see other bright-light plants.
More Ruellia Species
Other Ruellia species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Ruellia asperula Lindau, family Acanthaceae (first published in Nat. Pflanzenfam. 4(3b): 311 (1895)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Ruellia, 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
Ruellia 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