Growing and Saving the Seed Of Mint

There are several species within the Mentha genus, ranging from spearmint to peppermint. The low-growing, herbaceous perennial has myriad uses, both culinary and medicinal. Fragrant foliage and spike flowers. Grows as a frost-hardy perennial in USDA zones 3-10.



This plant family is native to a broad global range across several continents and is typically found in marginal, slightly boggy, soil. Ancient medicinal texts detail many medicinal uses for mint, from digestive health to freshening breath.


  • Culinary
  • Traditional medicinal




  • Seeds germinate in 7-14 days.
  • Start indoors in spring, 8-10 weeks before last frost.
  • Sow seeds 1/4 inch deep.
  • Ideal germination temperature is 70 F.


  • Prefers part shade to full sun.
  • Provide moist, well-drained soil.
  • Space plants 18-24 inches apart.
  • Plant reaches 6-12 inches.


  • A relatively pest-free plant. Be aware that mint is a fairly agressive plant that spreads by runners.
  • Prevent it from overtaking your garden by planting it in pots or in an herb garden where it can roam free.


  • Seeds are mature when flower heads have completely dried brown.
  • Cut flower spikes and place them in a paper bag.
  • Allow the seeds to completely dry and drop, shaking the the bag to loosen seeds if necessary.
  • Separate chaff from seeds and store in a cool,dry place.
  • More people propagate via cuttings because it is easier than growing from seeds.