Seed Swaps


Mentha pulegium

  • 24 plantings
  • 4 for swap
  • 6 wanted
  • 15 stashed

Pennyroyal is a member of the Mentha family. Its botanical name is Mentha pulegium.

  • Excellent ground-cover and can happily be walked on; it releases a fragrant scent when walked on
  • Good container plant – will hang over the sides
  • Flowers and leaves can be dried for potpourri
  • Effective insecticide
  • Rub fresh pennyroyal onto dogs’ coats to repel fleas (hence its name, “Fleabane”)

Blooms normally display as a colour very similar to   Lilac.

Pennyroyal is a flowering herb perennial, it will last at least up to several years in its native climate.

Normally grows with a ground-cover habit. This plant tends to bloom in mid summer.

Pennyroyal is normally quite a low maintenance plant and is normally very easy to grow - great for beginner gardeners!

This plant info is provided by the myfolia gardener's wiki. All details about Pennyroyal have been kindly provided by our members.

How to grow Pennyroyal

  • Full Sun

  • Partial Sun

  • High

  • Propagates easily from cuttings.
  • Dig compost into the bed around pennyroyal each season
  • Water well twice-weekly
  • Rooted cuttings can be started in spring to replace/fill in where older plants have died back

Enjoys a full sun / partial sun position in your garden and remember to water often.

See our list of companion Plants for Pennyroyal to see which plants you should plant in close proximity to encourage growth.

Growing Pennyroyal from seed

Transplanting Pennyroyal

Harvesting Pennyroyal

  • Effective insecticide – ant, flea and mosquito repellent
    • Sprinkle dried, powdered pennyroyal around ants’ nests
    • Rub fresh pennyroyal onto arms and face to repel mosquitoes
    • Rub fresh pennyroyal onto dogs’ coats to repel fleas (hence its name, “Fleabane”)

How long does Pennyroyal take to grow?

These estimates for how long Pennyroyal takes to sprout, grow and harvest are from real observations from real gardeners, right around the world.

Start logging and journaling your observations to participate!

Days to Germination How long does it take Pennyroyal to germinate?
7 days

Average 7 days | Min 6 days | Max 392 days (5)

Days to Transplant How long until I can plant out Pennyroyal?
+ 63 days

Average 63 days | Min 63 days | Max 63 days (3)

Days to Maturity How long until Pennyroyal is ready for harvest / bloom?
+ 151 days

Average 151 days | Min 151 days | Max 151 days (1)

Total Growing Days How long does it take to grow Pennyroyal?
= 221 days

Pennyroyal Folklore & Trivia

  • Pennyroyal flowers in a bouquet means “flee away”

Other names for Pennyroyal

Dwarf pennyroyal, Fleabane

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