Water Spearmint
Menthacervina

Family: Lamiaceae (lay-mee-AY-see-ee)
Genus: Mentha (MEN-thuh)
Species: cervina (ser-VEE-na)

Synonym:Preslia cervina

Category
Herbs
Perennials
Ponds and Aquatics

Water Requirements
Very high moisture needs; suitable for bogs and water gardens

Sun Exposure
Full Sun
Sun to Partial Shade

Foliage
Grown for foliage
Herbaceous
Shiny/Glossy

Foliage Color

Height
12-18 in. (30-45 cm)

Spacing
6-9 in. (15-22 cm)

Hardiness
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)

Where to Grow
Can be grown as an annual

Danger
Handling plant may cause skin irritation or allergic reaction

Bloom Color
Magenta (pink-purple)
Blue-Violet
White/Near White

Bloom Characteristics

Bloom Size

Bloom Time
Mid Summer

Other details

Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information
Non-patented

Propagation Methods
By dividing the rootball
From herbaceous stem cuttings

Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds