Tuberous Gromwell Plant Care
Lithospermum tuberosum Rugel ex A.DC.
Updated · Sources · How we source care data
Lithospermum tuberosum, commonly called the southern stoneseed or tuberous stoneseed, is a species of flowering plant in the forget-me-not family. It is native to the Southeastern United States, where it is found in calcareous woodlands.
Full sun to partial shade
At a glance
How do you care for Tuberous Gromwell?
Tuberous Gromwell grows best in full sun to partial shade.
Where Is the Tuberous Gromwell Native To?
What Is the Tuberous Gromwell?
Tuberous Gromwell (Lithospermum tuberosum) belongs to the Boraginaceae family within the Lithospermum genus. Tuberous Gromwell is native to the Southeastern United States. Tuberous Gromwell is also known as American Gromwell.
Tuberous Gromwell displays a low rosette, spreading ground cover growth habit, reaching up to tall with a spread of approximately . Tuberous Gromwell produces small, tubular yellow flowers in clusters.
What Light Does the Tuberous Gromwell Need?
Tuberous Gromwell thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Soil Mix Works Best for a Tuberous Gromwell?
Well-draining sandy soil with added organic matter like compost. Good drainage is essential for Tuberous Gromwell to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Tuberous Gromwell?
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 Tuberous Gromwell?
Tuberous Gromwell can be propagated through seeds, division of clumps. Similar propagation techniques also apply to bolivian puccoon plant care, which shares the same genus.
Is the Tuberous Gromwell Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Tuberous Gromwell, 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 Tuberous Gromwell?
Tuberous Gromwell is susceptible to aphids, spider mites, leaf miners. 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
Tuberous Gromwell 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 Lithospermum genus — compare its care with other Lithospermum species on PlantoScan.
Lithospermum is part of the Boraginaceae plant family — browse all Boraginaceae genera and species.
Tuberous Gromwell thrives in bright light and direct sun — see other bright-light plants.
More Lithospermum Species
Other Lithospermum species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Lithospermum tuberosum Rugel ex A.DC., family Boraginaceae (first published in Prodr. 10: 76 (1846)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Tuberous Gromwell, 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.
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