History
Spearmint (Mentha spicata) is one of the oldest cultivated herbs in the world, with a history stretching back more than 3,000 years. Ancient Greeks used it to scent bathwater and flavor sauces, and Roman naturalist Pliny the Elder wrote enthusiastically about its culinary and medicinal virtues. It spread across Europe with the Romans and became a fixture in medieval monastery gardens, where monks used it to flavor foods, freshen breath, and treat digestive ailments. By the 17th century it was growing in virtually every European kitchen garden and had traveled with colonists to the Americas, where it naturalized so readily it became a common wildflower along streams and roadsides. Spearmint is the classic culinary mint — the one in your mojito, your mint julep, your lamb sauce, and your garden potpourri. Open-pollinated and non-GMO.
Plant Profile
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Days to Maturity: 90 days from seed to first harvest; spreads vigorously once established
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Plant Size: Upright, spreading stems 18–24 inches tall; spreads by underground runners
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Leaves: Bright green, lance-shaped leaves with a wrinkled texture and a sweet, clean mint fragrance
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Plant Type: Open-pollinated, non-GMO heirloom perennial (Zones 3–9; extremely cold-hardy)
Flavor & Fragrance Profile
Spearmint has a bright, sweet, clean mint fragrance — lighter and sweeter than peppermint, without the sharp menthol edge. The flavor is refreshing and versatile: cool, slightly sweet, and unmistakably minty without being overpowering. Dried spearmint retains its fragrance well and adds a fresh, cooling lift to potpourri blends. In the Citrus Garden and Garden Fresh blends it brightens and refreshes; in the Winter Lift blend it adds a clean, invigorating note that balances the warmer, earthier ingredients.
Growth Type & Harvest Yields
Spearmint is one of the most vigorous and productive herbs you can grow — once established, it spreads enthusiastically by underground runners and will fill any space you give it. Grow in containers to keep it contained, or plant in a dedicated bed where spreading is welcome. Start seeds indoors 8–10 weeks before last frost; germination from seed is slower and less uniform than vegetative propagation, but plants establish quickly once sprouted. A single established plant will provide abundant harvests of fragrant leaves throughout the growing season and into fall.
Disease Resistance
- Generally excellent disease resistance — one of the most vigorous and trouble-free herbs
- Mint rust can occur in humid conditions — ensure good air circulation and avoid overhead watering
- Virtually pest-free — the strong mint fragrance deters most insects, including aphids and flea beetles
- Tip: Grow in containers to prevent aggressive spreading; divide and replant every 2–3 years to keep plants productive
Growing Tips & Planting Dimensions
- Spacing: 18–24 inches between plants — it will spread to fill available space
- Sow depth: Surface sow — barely cover with 1/8 inch of mix; light aids germination
- Germination: 10–16 days at soil temps of 65–70°F
- Full sun to partial shade — tolerates more shade than most herbs
- Consistent moisture preferred — more forgiving of water than rosemary or sage
- Start indoors 8–10 weeks before last frost; transplant after frost danger passes
- Container growing strongly recommended to prevent spreading
🌱 Good Things Come in Small Packages
Spearmint seeds are tiny — but don't let their size fool you. These little seeds carry everything needed to grow into vigorous, fragrant plants. They just ask for a little extra care at germination. Follow these steps and you'll be well on your way.
How to Germinate Successfully:
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Start with the right foundation. Use a fine seed-starting mix — not garden soil or coarse potting mix. Sift it if needed. Tiny seeds need a smooth, even surface to make good contact and germinate reliably.
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Surface sow — do not bury. Press seeds gently onto the moist surface and leave them right on top. These seeds need light to germinate — even a light covering can work against you.
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Mist, don't drench. Use a spray bottle to keep the surface evenly moist. Watering from above can wash tiny seeds away before they ever get started.
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Warmth is your friend. These seeds germinate best at 65–70°F — basically normal room temperature. A heat mat can help if your space runs cool.
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Trap the humidity. Cover your tray with a humidity dome or a loose piece of plastic wrap. This keeps moisture and warmth stable while you wait.
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Give them time. Germination can take 10–16 days. Keep conditions consistent, resist the urge to overwater, and trust the process — they will sprout.
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Thin with scissors, not fingers. Once seedlings appear, snip extras at the soil line rather than pulling. These roots are close together and pulling one can disturb its neighbors.
When to Plant
Start seeds indoors 8–10 weeks before your last frost date. Transplant outdoors after frost danger has passed and soil has warmed. Spearmint is extremely cold-hardy and will overwinter reliably in Zones 3–9, dying back to the ground and returning vigorously each spring. Find your frost dates and hardiness zone at the USDA Plant Hardiness Zone Map.
Companion Plants & Mutual Benefits
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Tomatoes — spearmint deters aphids, flea beetles, and spider mites; attracts beneficial predatory insects
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Brassicas — spearmint repels cabbage moths, aphids, and flea beetles
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Peas & Beans — spearmint deters aphids and attracts beneficial insects
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Chamomile — classic herb garden pairing; both attract pollinators and thrive in similar conditions
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Avoid: planting directly in garden beds without containment — spearmint spreads aggressively by underground runners
How to Enjoy
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Culinary: The essential mint for mojitos, mint juleps, tabbouleh, lamb dishes, and fresh summer salads — the most versatile culinary mint
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Herbal Tea: Steep fresh or dried leaves in hot water for a bright, refreshing mint tea — one of the most popular herbal teas in the world
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Potpourri: A fresh, cooling lift in Citrus Garden, Garden Fresh, and Winter Lift blends — dried leaves hold fragrance well for months
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Sachets: Dried spearmint in a muslin bag naturally freshens drawers, closets, and stored linens
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Infused Water & Cocktails: Add fresh sprigs to water, lemonade, or cocktails for an instant refresh
Why Gardeners Love Spearmint
- The classic culinary mint — sweeter and more versatile than peppermint for cooking and drinks
- Extremely cold-hardy perennial in Zones 3–9 — plant once and harvest for decades
- One of the most productive herbs in the garden — a single plant yields abundantly all season
- Fresh, cooling fragrance that brightens any potpourri blend or herbal craft
- Tolerates partial shade — grows where other herbs won't
- Open-pollinated and non-GMO — save your own seeds year after year
Harvest Tips
- Harvest stems anytime once plants are established — cut back by up to one-half to encourage bushy, productive regrowth
- Harvest in the morning after dew has dried for the most intense fragrance
- For drying, bundle stems loosely with twine and hang upside down in a warm, airy location for 1–2 weeks, or spread leaves on a drying screen
- Store dried spearmint in an airtight container away from light and heat for up to 1 year
- Fresh spearmint keeps well in the refrigerator in a glass of water (like cut flowers) for up to 1 week
Order Today
Add Spearmint Seeds to your herb garden and grow the world's most beloved culinary mint — refreshing, productive, and endlessly useful from the kitchen to the cocktail glass to the potpourri bowl. Choose your pack size and begin to grow.
