Pennyroyal Plant Care
Monardella stebbinsii Hardham & Bartel
Updated · Sources · How we source care data
Monardella stebbinsii is a rare species of flowering plant in the mint family known by the common names Feather River monardella and Stebbins' monardella. It is endemic to Plumas County, California, where it is known from only about ten occurrences along the North Fork of the Feather River in the High Sierra.
Full sun to partial shade
At a glance
How do you care for Pennyroyal?
Pennyroyal grows best in full sun to partial shade.
Where Is the Pennyroyal Native To?
What Is the Pennyroyal?
Pennyroyal (Monardella stebbinsii) belongs to the Lamiaceae family within the Monardella genus. Pennyroyal is native to Plumas County, California.
Pennyroyal displays a low mat-forming perennial growth habit, reaching up to tall with a spread of approximately . Pennyroyal produces small tubular flowers in shades of pink, purple, or red.
What Light Does the Pennyroyal Need?
Pennyroyal thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Soil Mix Works Best for a Pennyroyal?
Well-draining sandy loam with added organic matter. Good drainage is essential for Pennyroyal to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Pennyroyal?
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 Pennyroyal?
Pennyroyal can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to arizona monardella plant care, which shares the same genus.
Is the Pennyroyal Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Pennyroyal, 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 Pennyroyal?
Pennyroyal is susceptible to aphids, spider mites. 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
Pennyroyal 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 Monardella genus (family Lamiaceae) — search all Monardella species in the plant lookup.
Pennyroyal thrives in bright light and direct sun — see other bright-light plants.
More Monardella Species
Other Monardella species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Monardella stebbinsii Hardham & Bartel, family Lamiaceae (first published in Aliso 12: 693 (1990)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Pennyroyal, 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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