Wild Peppermint
Mentha longifolia
An herbaceous perennial plant featuring upright, branching square stems with opposite, oblong to lance-shaped leaves that have serrated margins and prominent veining. The foliage typically has a fuzzy texture and a distinct aromatic presence.
- Light
- Full sun to partial shade, requiring at least 6 hours of direct sunlight daily.
- Water
- High water needs; keep the soil consistently damp. Drought tolerance is low, and underwatering is indicated by wilting and crispy leaf edges.
- Growth
- Herbaceous perennial with an upright and spreading growth form, reaching mature heights of 1 to 3 feet with a rapid spread via underground runners.
Care instructions
Provide full sun to partial shade with consistently moist, well-draining soil. Water regularly to prevent the root system from drying out completely. Apply a balanced liquid fertilizer during the active growing season to support robust foliage development.
Growing details
Sunlight
Full sun to partial shade, requiring at least 6 hours of direct sunlight daily.
Watering
High water needs; keep the soil consistently damp. Drought tolerance is low, and underwatering is indicated by wilting and crispy leaf edges.
Soil
Rich, loamy to sandy soil with good organic content and a neutral to slightly acidic pH range of 6.0 to 7.0.
Hardiness zone
USDA zones 5 through 9, demonstrating good cold tolerance during winter dormancy.
Growth habit
Herbaceous perennial with an upright and spreading growth form, reaching mature heights of 1 to 3 feet with a rapid spread via underground runners.
Bloom season
Flowers appear from mid to late summer, producing dense, terminal spikes of small, tubular lavender to purple flowers.
Propagation
Easily propagated through stem cuttings placed in water or moist soil, or by division of established root clumps in spring or autumn.
Common pests & issues
Susceptible to fungal rust and powdery mildew in humid, poorly ventilated conditions, as well as aphids. Prevent by ensuring proper spacing and air circulation.
Similar species
Other Mentha species such as Mentha spicata (Spearmint), which can be distinguished by smoother, narrower leaves and differing flower spike structures.