Mint Pennyroyal
Mentha pulegium
herbPennyroyal is a low-growing creeping mint with small, delicate leaves and a peppermint-like scent traditionally used in herbal preparations and as a natural insect repellent. It spreads via runners and self-seeding, making it excellent as ground cover in herb gardens. The plant produces small purple or white flowers and has a long history of use in folklore and natural remedies.
Common Problems
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Care Guide
Toxicity
Contains pulegone, a volatile oil that is toxic in concentrated forms. Keep away from pets and children; not safe for internal use. Can cause liver and kidney damage.
Common Diseases
Common Pests
Seasonal Care
Resume regular watering and feeding as growth picks up.
Peak growing season. Water and feed regularly.
Reduce watering as growth slows. Stop heavy feeding.
Minimal watering and feeding. Protect from frost if needed.
Similar Plants
Frequently Asked Questions
Is Pennyroyal safe to grow around pets and children?
Grow it with caution — it contains pulegone, a volatile oil that's toxic in concentrated forms and can cause liver and kidney damage, so keep it away from pets and children and never use it internally.
Why is my Pennyroyal spreading so fast?
It spreads via runners and self-seeding, which is exactly what makes it such an effective, low-growing ground cover in herb gardens.