Peppermint (Mentha × piperita): Vigorous Hybrid Mint for Tea and Flavor

Overview

Peppermint (Mentha × piperita) is a natural hybrid between watermint (M. aquatica) and spearmint (M. spicata), sterile and propagated only vegetatively. Its high menthol content gives an intense cooling sensation, making it the premier mint for tea, confections, and essential oil.

Botanical Description

Spreading perennial 30–90 cm tall via aggressive rhizomes. Stems square, often reddish. Leaves are ovate-lanceolate, 4–9 cm long, toothed, dark green, sometimes purple-tinged, with a strong menthol scent. Flowers are tiny, pale purple, in terminal spikes, blooming July–September. Sterile—produces no viable seed.

Taxonomy

Family:	Lamiaceae (lay-mee-AY-see-ee)
Genus:	Mentha (MEN-thuh)
Species:	× piperita (pip-er-EE-tuh)
Synonyms:	M. piperita, M. lavanduliodora

Growing Conditions

• Light: Full sun to part shade.
• Soil: Moist, rich, well-drained.
• Water: Consistent moisture; thrives in damp sites.
• Hardiness: USDA zones 3–9.

Management

Invasive! Plant only in containers or with deep root barriers. Spreads aggressively by rhizomes. Harvest frequently to control. Divide annually.

Uses

Culinary: Tea, desserts, cocktails, savory dishes. Medicinal: IBS, nausea, headaches, congestion (menthol). Essential oil: Flavoring, aromatherapy, topical analgesic.