Classic Mint
Spearmint (Mentha spicata 'Kentucky Colonel') is a frost-hardy perennial herb that thrives across zones 5 to 9, though some sources extend the upper limit to zone 10 or 11. This rhizomatous spreader reaches 12 to 24 inches tall and wide, producing dark green lanceolate leaves with a distinctly fresh, cool flavor that's milder and more refined than peppermint. In summer, small pink and white flowers bloom in showy terminal spikes, attracting butterflies while the foliage emits the classic spearmint fragrance. Ready to harvest year-round once established, it adapts beautifully to containers, garden beds, and rain gardens, making it one of the most versatile herbs for any growing space.
Partial Sun
Moderate
5-9
24in H x 24in W
Perennial
High
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The real appeal of this cultivar lies in its aggressive vigor combined with culinary excellence. Unlike delicate herbs that demand fussy conditions, spearmint laughs at neglect, spreading via underground rhizomes to fill bare spots while producing endless supplies of cool, slightly sweet leaves. It flowers prolifically in mid to late summer with showy pink and white blooms that butterflies adore, yet you can simply shear it back after flowering to keep harvesting tender new growth for mojitos, teas, and salads. Deer and rabbits leave it alone, and it tolerates wet soil that would rot other herbs, thriving equally well in full sun or dappled shade.
Fresh spearmint leaves shine brightest in teas, where their mild, cool sweetness creates a naturally refreshing brew without the intensity peppermint brings. The herb is equally at home muddled into cocktails, sprinkled over fresh salads, folded into desserts, or used as a vibrant garnish. Many gardeners grow it specifically for culinary purposes, leveraging its vigorous growth to ensure year-round harvests for both hot and cold applications.
Sow seeds indoors in warm conditions between 50 and 70 degrees Fahrenheit, typically 6 to 8 weeks before your last spring frost. Keep soil consistently moist but not waterlogged, and germination should occur within 1 to 2 weeks.
Harden off seedlings over 7 to 10 days once they've developed true leaves and outdoor temperatures stabilize above 50 degrees. Transplant into rich, moist soil spaced 18 inches apart in full sun to partial shade.
Direct sow seeds outdoors after the last frost date once soil has warmed to at least 50 degrees Fahrenheit. Press seeds lightly into moist soil and keep the area consistently damp until germination occurs.
Begin harvesting leaves once the plant is well-established, typically within the first growing season. Pinch off individual leaf clusters from the top of stems, or cut entire stems just above a leaf node to encourage branching. For the most vibrant flavor and aroma, harvest in the morning after the dew dries but before afternoon heat builds. Fresh leaves can be used immediately in teas, cocktails, and culinary preparations, or dried for longer storage. This herb rewards frequent harvesting with more prolific growth.
Shear back the entire planting after summer blooms finish to remove flower spikes and encourage vigorous new vegetative growth. Regular pinching of stem tips throughout the growing season promotes bushier, more compact growth and prevents the plant from becoming lanky. This cultivar responds enthusiastically to pruning, often producing denser foliage within weeks of cutting.
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