Collinsonia verticillata Plant Care
Collinsonia verticillata Baldwin
Updated · Sources · How we source care data
Collinsonia verticillata is a species of flowering plant in the mint family known by the common names stoneroot, early stoneroot, whorled stoneroot, and whorled horse-balm. It is native to the United States, where it occurs in the southeastern states, especially the southern Appalachian Mountains, its distribution extending north to Ohio.
Every 5–7 days
Partial shade to full sun
50–80°F
40–70%
At a glance
How do you care for Collinsonia verticillata?
Water Collinsonia verticillata every 5–7 days, letting the top layer of soil dry out between waterings, and give it partial shade to full sun. 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 Collinsonia verticillata Native To?
What Is the Collinsonia verticillata?
Collinsonia verticillata (Collinsonia verticillata) belongs to the Lamiaceae family within the Collinsonia genus. Collinsonia verticillata is native to the United States.
Collinsonia verticillata displays an upright, spreading perennial growth habit, reaching up to 2.5 ft tall with a spread of approximately 1.5 ft. Collinsonia verticillata produces small tubular flowers in shades of white, pink, or purple.
Leaf size: approximately 4 inches.
How Often Should You Water a Collinsonia verticillata?
Collinsonia verticillata requires watering every 5–7 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 5–7 days
Let soil partially dry between waterings
What Light Does the Collinsonia verticillata Need?
Collinsonia verticillata thrives in partial shade to full sun.
Light Requirement
Partial shade to full sun
What Temperature and Humidity Does the Collinsonia verticillata Prefer?
Collinsonia verticillata grows best at temperatures of 50–80°F. Collinsonia verticillata prefers humidity levels of 40–70%.
Temperature
50–80°F
Humidity
40–70%
What Soil Mix Works Best for a Collinsonia verticillata?
Well-draining loamy soil with added organic matter for moisture retention. Good drainage is essential for Collinsonia verticillata to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Collinsonia verticillata?
Feed Collinsonia verticillata 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 Collinsonia verticillata?
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 Collinsonia verticillata?
Collinsonia verticillata can be propagated through seeds, division of clumps, stem cuttings.
Is the Collinsonia verticillata Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Collinsonia verticillata, 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 Collinsonia verticillata?
Collinsonia verticillata 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 Collinsonia verticillata Need?
Collinsonia verticillata grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Collinsonia verticillata is native to the United States. In cooler regions, grow Collinsonia verticillata as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Collinsonia verticillata 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 Collinsonia genus (family Lamiaceae) — search all Collinsonia species in the plant lookup.
Collinsonia verticillata 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: Collinsonia verticillata Baldwin, family Lamiaceae (first published in Sketch Bot. S. Carolina 1: 36 (1816)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Collinsonia verticillata, 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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