Spearmint

Family: Lamiaceae Herb

Cool, bright spearmint fragrance rises the moment you brush the leaves—an invigorating blend of green freshness and gentle sweetness.

Spearmint forms a dense, upright clump with tender, medium-green leaves that hold their aromatic oils beautifully, making it a standout for steeping and flavoring throughout the season. Grow Spearmint for its lively, clean character in refreshing beverages, herbal infusions, and herb-forward sauces, or for pickling-style accents that benefit from its crisp, minty lift.

Light: Part SunMaturity: 60 DaysHabit: Upright

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

Milestone	Date
Start Indoors	Apr 4th
Last Frost	Apr 25th
Transplant / Sow Outdoors	Jun 6th
Harvest Begins	Aug 5th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	60
Sun Requirements	Part Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	50
Min Night Temp (°F)	35
Harden Off (days)	7

Culinary Notes

Chef's Note

Spearmint’s upright leaf aroma is all clean lift—steep it briefly and you get a cool, sweet-green perfume without turning harsh. Use it chopped or torn right at the end so the volatile oils don’t cook off; it’s especially lethal with lemon, yogurt, and anything grilled.

Best Uses

steeped mint tea or bright herbal infusions
mint-chiffonade finish for yogurt, raita, or creamy dressings
mint-inflected syrups for iced drinks and spritzes
chopped mint in herb sauces like chimichurri-style mixtures

Flavor Profile

cool, bright mint snap light sweetness with a crisp herbal edge cooling finish that lingers without bitterness aromatic oils that perfume hot and cold liquids

Kitchen Pairings

lemon yogurt garlic cucumber honey lamb

Frequently Asked Questions

What pest or disease commonly affects spearmint (Mentha spicata) and how can I control it?

Spearmint often gets mint rust (Puccinia spp.), showing orange-brown pustules on the undersides of leaves. Remove and discard infected leaves early, improve airflow by spacing plants, and avoid wetting foliage when you water. If it keeps spreading, treat with a copper-based fungicide labeled for edible herbs, applied according to the label.

How often should I water spearmint during the main growing phase?

During active growth (spring through early fall), keep the soil consistently moist but not waterlogged—aim for evenly damp soil in the top 1–2 in (2–5 cm). Water when the top layer begins to dry, typically about 1–2 times per week depending on heat and container size. In hot weather, container plants may need more frequent watering, but always prevent standing water to reduce fungal issues.

How do I know when spearmint is ready to harvest?

You can start harvesting around day 60, once stems are well-leafed and plants have formed a dense crown. For best flavor, pick shoots when they’re about 6–8 in (15–20 cm) long, before heavy flowering, and harvest in the morning for the strongest aroma. Regular trimming encourages fresh, tender growth, so cut stems back by about one-third rather than taking only the top leaves.