- You will get 300+ Seeds of Spearmint Herb Seeds. - Seller Notes “Mentha spicata. Organic. U.S. Grown Seed. Tested 1/23-Germination 93%. Packed 1/23.”. - Planting Time: 10 Weeks. - Soil Type: Clay, Loam, Peat, Sand. - Life Cycle: Perennial. - USDA Hardiness Zone (°F): 5 (-20 to -10 °F). - Soil pH: Neutral. - Watering: Medium. - Sunlight: Full Sun. - Spearmint. Sweetly aromatic herb with culinary and medicinal benefits. This perennial will grow to 3 feet tall and spread quickly to indefinite widths. Lance-shaped leaves have a unique wrinkled texture. Oblong spikes of lavender pink flowers appear in early summer. Spearmint is from the mint family of plants. Mint usually grow's so well, it is best to confine them to containers. Very easy to grow from seed and have a pretty long-life span(7+yrs). Just wait until your plant is at least a foot tall before harvesting leaves. Then snip off the bigger outside leaves and let the little inner leaves grow for your next clipping. This plant has to many uses to name, but the dried leaves make a great natural organic tea. If you have a few spearmint plants in your yard, you can usually smell them as soon as you step outside. They also will do well in a sunny window. Spearmint is winter hardy to about -10F. 300+ seeds per order. Thank You!. - Mentha spicata. - Perennial. - Spring, soil temp 60F+. - Full sun/P. sun. - SOW-4 seeds 1/8"deep, about 18"apart. Keep moist. - Germination 14-21 Days. - Medium water and light fertilizer if needed. - Flowers are purple. Blooms early summer.