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Spearmint (Seeds)

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Heirloom Herb. Spearmint seeds grow to 60 cm (2′) tall. Plants will vary in their “minty” intensity. Taste test several individual plants raised from seed. When you find one you particularly enjoy, propagate by root division or rooted cuttings.

Perennial hardy to Zone 5.

How to Grow

Sow seed directly outdoors in a sunny site with average soil in mid-to-late May or again in mid-August through to mid-September. In spring seed can also be started indoors in a soil-less mix 6-8 weeks before last frost date. Keep temperature at 21°C (70°F) for the 7-14 day germination period, then grow on at a slightly cooler temperature before hardening off and transplanting outside after the danger of frost has passed. Sow seed 3 mm (1/8″) deep and 1.25 cm (1/2″) apart then thin the sprouts to 10 cm (4″) apart in the garden.