How to Grow Catnip

Catnip (Nepeta cataria) is a hardy perennial herb known for its fragrant foliage and its strong appeal to many cats. It thrives in full sun, well-drained soil, and adapts easily to a wide range of climates. This guide explains planting, germination, care, harvesting, and climate considerations suitable for all regions.

Where Should You Plant Catnip?

  • Best location: Full sun to light shade; plants grow bushy and aromatic with good sunlight.
  • Soil: Well-drained, moderately fertile soil; catnip tolerates poor soil once established.
  • Moisture: Moderate moisture; avoid consistently wet soil to prevent root issues.

When Should You Plant Catnip?

  • Start indoors: Begin seeds 4–6 weeks before transplanting if outdoor conditions are still cool.
  • Transplanting: Move outdoors once temperatures support steady growth and the risk of cold damage has passed.
  • Direct sow: Plant when soil is workable and warm enough for germination.

How Do You Plant Catnip?

  • Depth: Sow seeds ¼ inch deep; germination typically occurs within 7–14 days.
  • Spacing: Space plants 18–24 inches apart; catnip forms broad, leafy clumps.
  • Quantity: A few plants provide ample leaves for drying, fresh use, and cat toys.

Which Plants Grow Well With Catnip?

  • Companions: Herbs such as mint, oregano, and thyme; catnip attracts pollinators.
  • Avoid: Plants sensitive to cat activity; some cats may roll on or crush nearby plants.
  • Best pairing: Flowers that benefit from increased pollinator visits.

How Do You Water and Feed Catnip?

  • Watering: Water regularly during establishment; mature plants tolerate brief dryness.
  • Feeding: Apply compost or a light organic fertilizer; excessive fertility may reduce aroma intensity.

How Do You Care for Catnip?

  • Support: No staking required; plants remain compact and sturdy.
  • Weeding: Keep beds weed-free to maintain airflow and reduce competition.

Can You Grow Catnip in Containers?

  • Container size: Minimum 8 inches deep and wide; catnip grows well in pots.
  • Winter growing: Grow indoors in bright windows or under lights during cool seasons.

What Pests or Diseases Affect Catnip?

  • Pests: Aphids and spider mites; monitor foliage and use organic controls if needed.
  • Diseases: Root rot in overly wet soil; ensure proper drainage.

How Do You Harvest Catnip?

  • Timing: Harvest leaves once plants reach 8–12 inches; aroma intensifies before flowering.
  • Leaves: Snip stems and dry in a cool, shaded area; store dried leaves in airtight containers.
  • Seeds: Allow flowers to dry on the plant; collect seeds once heads turn brown.