Rose Mallow Plant Care
Sabatia angularis Pursh
Updated · Sources · How we source care data
Sabatia angularis, commonly called rosepink, rose pink, square-stem rose pink or rose gentian, is a biennial flowering plant in the Gentianaceae (gentain) family. It is native to central and eastern North America.
Every 4–7 days
Full sun to partial shade
50–80°F
40–70%
At a glance
How do you care for Rose Mallow?
Water Rose Mallow every 4–7 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 50–80°F (10–27°C) and 40–70% humidity. Fertilize it every 6 months during the growing season.
Where Is the Rose Mallow Native To?
What Is the Rose Mallow?
Rose Mallow (Sabatia angularis) belongs to the Gentianaceae family within the Sabatia genus. Rose Mallow is native to central and eastern North America. Rose Mallow is also known as American Star-gentian, Squarestem.
Rose Mallow displays an upright, branching perennial growth habit, reaching up to 2 ft tall with a spread of approximately 1.5 ft. Rose Mallow produces showy, star-shaped flowers in pink, purple, or white.
Leaf size: approximately 4 inches.
How Often Should You Water a Rose Mallow?
Sabatia angularis requires watering every 4–7 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 4–7 days
Let soil partially dry between waterings
What Light Does the Rose Mallow Need?
Rose Mallow thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Rose Mallow Prefer?
Sabatia angularis grows best at temperatures of 50–80°F. Rose Mallow prefers humidity levels of 40–70%.
Temperature
50–80°F
Humidity
40–70%
What Soil Mix Works Best for a Rose Mallow?
Moist, well-draining soil rich in organic matter. Good drainage is essential for Rose Mallow to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Rose Mallow?
Feed Rose Mallow 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 Rose Mallow?
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 Rose Mallow?
Rose Mallow can be propagated through seeds, division of clumps. Similar propagation techniques also apply to shortleaf sabatia plant care, which shares the same genus.
Is the Rose Mallow Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Rose Mallow, 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 Rose Mallow?
Rose Mallow 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.
What USDA Hardiness Zone Does the Rose Mallow Need?
Rose Mallow grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Rose Mallow is native to central and eastern North America. In cooler regions, grow Rose Mallow as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Rose Mallow 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 Sabatia genus — compare its care with other Sabatia species on PlantoScan.
Sabatia is part of the Gentianaceae plant family — browse all Gentianaceae genera and species.
Rose Mallow thrives in bright light and direct sun — see other bright-light plants.
More Sabatia Species
Other Sabatia species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Sabatia angularis Pursh, family Gentianaceae (first published in Fl. Amer. Sept. 1: 137 (1813)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Rose Mallow, 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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