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Mint

Spearmint

Lamiaceae

Spacing1 per sq ft
Expected YieldContinuous harvest, April-October

Mint

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Variety History

Spearmint (Mentha spicata) is native to Europe and Asia and has been cultivated for culinary and medicinal use since ancient times. It was brought to North America by early colonists and has naturalized across the continent.

Regional Context

Mint is unkillable in the PNW — our climate is perfect for it. Spearmint is the classic culinary mint (mild, sweet, versatile). Peppermint is stronger (ideal for tea). Apple mint and chocolate mint are fun variations. Always contain it. A 12" pot of mint on the patio provides more than a family can use. It dies back in winter and returns vigorously in spring.

Growing Technique

Mint is best grown from transplants (cuttings or divisions), not seed — named varieties do not come true from seed. Plant in spring. MINT IS AGGRESSIVE — always grow in a container or use a buried barrier (a 12" deep ring of metal or plastic). In the ground, it will spread relentlessly via underground runners. Plant in rich, moist soil in partial shade (full sun in the PNW is fine with adequate water). Pinch growing tips regularly to encourage bushiness. Harvest leaves as needed — cut stems back to 2" above soil for a large harvest. Divide every 3 years to maintain vigor. Mint flowers attract beneficial insects.

Watch For

  • The ONLY real failure mode is planting mint directly in the ground without containment — it WILL take over your garden bed. Mint rust (orange spots on leaf undersides) in humid conditions — improve airflow, remove affected leaves. Powdery mildew in late summer — cut back hard, it will regrow. Spider mites in hot dry conditions — spray with water.

Recipes