Identifying Pennyroyal vs. Mint: Safety Warning for Community Garden

Based on description (round leaves, thin purple edge, square purple stems, strong mint/toothpaste scent, invasive), the plant is likely pennyroyal (Mentha pulegium).

Critical Warning

Pennyroyal is toxic if ingested—can cause miscarriage. Stop selling as culinary herb immediately.

Identification Tips

• Mint family = square stems (feel with fingers).
• Pennyroyal has distinct rounded leaves and creeping habit.
• True culinary mints (peppermint, spearmint) have different leaf shapes.

Use as insect repellent for pets only. Reference: botanical.com, ageless.co.za.