Nepeta cataria, commonly called catnip or catmint, is a perennial herb in the genus Nepeta. It belongs to the Lamiaceae or mint family, and is native to parts of Europe and Asia but now grows widely in temperate regions. The plant is valued both as an ornamental garden herb and for the behavioral response it provokes in many domestic cats.

Botanical characteristics

Catnip typically forms clumps of coarse, opposite, gray-green leaves and produces spikes of small, tubular white or pale lavender flowers. It is hardy and fast-growing in well-drained soil with moderate sunlight. The foliage and flowers have a characteristic minty, slightly pungent aroma due to volatile oils concentrated in glandular hairs on the leaves.

Chemistry and effects on animals

The most studied active component is nepetalactone, an essential oil that can trigger a range of behaviors in susceptible cats, such as sniffing, rubbing, rolling, vocalizing and short bursts of activity. Sensitivity is hereditary and varies: roughly half to two-thirds of cats show a response, while others remain unaffected. Effects are generally short-lived and non-addictive. Ingestion can produce different reactions and, in some animals, mild gastrointestinal upset or diarrhea.

Uses and cultivation

  • Household and pet: dried or fresh catnip is used in toys, sprays and treat recipes to encourage play and exercise.
  • Gardening: grown as a low-maintenance border plant or companion in pollinator gardens because it attracts bees and butterflies.
  • Traditional and herbal: prepared as a mild tea or infusion in folk remedies for minor digestive discomfort and as a calming herbal infusion, though clinical evidence is limited.

Cultivation is straightforward: propagate by seed or cuttings, prune to prevent woody growth, and divide clumps every few years to renew vigor. Oil-distillation of the foliage yields aromatic extracts used experimentally as insect repellents.

History, distinctions and precautions

Catnip has long been recorded in European herbals and was introduced into gardens beyond its native range centuries ago. It is often called catmint for the whole genus and should not be confused with other feline attractants such as silver vine or valerian, which produce similar but chemically distinct effects. While generally safe, excessive ingestion can cause vomiting or diarrhea in some animals; avoid heavy exposure for kittens and monitor pets after first use. As with any herbal product, people should exercise caution and consult reliable sources before medicinal use.

For general botanical references and further reading see resources on the plant species and the Nepeta group.