Students for Stewardship The Cork Board
← Back to the library

Garden Mint

Mentha spicata (MEN-thah spih-KAY-tah)

Family: Lamiaceae Non-native Herbaceous (1-3 ft)

Spearmint is a flowering, aromatic herb or groundcover in the Lamiaceae (mint) family native to Europe. In its natural haibtat it is found growing in moist fields and pond or lake margins. It can be distinguished from other mints by its almost hairless (glabrous) leaves that are attached to the stem with a very to almost non-existant petiole (sessile). The genus name comes from Minthe or Menthe, a water nymph in Greek mythology, who was transformed by Persephone into a mint plant in revenge for Minthe's ongoing affair with Hades (husband of Persephone). The species name means spike. This upright perennial thrives in full sun in organically rich, well-drained, moist soils growing quickly 1 to 2 feet high and wide with bright green leaves and shoots. It does tolerate partial shade and a wide range of soil types, but does not do well in dry soils. The square stems can root wherever they touch the ground and it also spreads by rhizomes. Soil barriers can restrain rhizomatous spread if plants are grown in borders or other areas where spread is unwanted. The small lilac, pink, or white flowers appear in terminal spikes in late summer and can be sheared after bloom to remove flower spikes and stimulate new vegetative growth. Leaves have a strong spearmint fragrance and taste, and may be used to flavor teas, in salads, as a garnish or in potpourris. It is widely used for culinary purposes and is known as one of the best mints for flavor. Use the flowers and leaves fresh or dried in teas, beverages, jellies, syrups, candies, ice creams, lamb dishes, and mint sauce. Best grown in a container as it spreads rampantly. This trait, however, can be an advantage if the plants are grown as a ground cover in moist areas. The herb will also do well in a raised bed that will provide good drainage and help to control spread. Insects, Diseases, and Other Plant Problems: Fungal diseases are common diseases in spearmint. Two main diseases are rust and leaf spot. The plant spreads aggressively. VIDEO Created by Laura Barth for "Vegetables, Herbs, Fruits, and Nuts," a plant identification course developed in partnership with Longwood Gardens.

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 64 attributes.

How it fits the guild

Guild layer 4 - Herbaceous (1-3 ft) Optimal soil pH Neutral (6.0-8.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Often confused with Mentha x piperita Nepeta x faassenii
Fills a similar niche Mentha x piperita Salvia rosmarinus Solanum lycopersicum

Full plant profile

Growing Conditions
Plant type
Edible; Ground Cover; Herb; Herbaceous Perennial
Life cycle
Perennial
USDA zones
4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Light
Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
Clay; High Organic Matter; Loam (Silt); Sand
Soil pH
Neutral (6.0-8.0)
Soil drainage
Good Drainage | Moist | Occasionally Dry | Occasionally Wet
Available space
12 inches-3 feet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 1 ft. 0 in. - 2 ft. 0 in. | Width: 1 ft. 0 in. - 2 ft. 0 in.
Growth rate
Rapid
Maintenance
Medium
Canopy layer
4 - Herbaceous (1-3 ft)
Form & Appearance
Habit / form
Creeping; Erect; Multi-stemmed; Spreading
Foliage
Deciduous
Leaf color
Green
Leaf type
Simple
Leaf arrangement
Opposite
Leaf shape
Lanceolate; Ovate
Leaf margin
Dentate; Serrate
Leaf value
Edible; Fragrant
Leaf size
1-3 inches long, < 1 inch wide
Hairs present
Yes
Leaf detail
The upper surface of each 3 inch leaf is medium green and glabrous; it has a wrinkled appearance because of the indentations along its veins. The lower surface of each leaf is pale to medium green and mostly glabrous and the leaves are nearly sessile. The foliage of spearmint has a moderately strong minty fragrance. The elongated teeth of the margins have narrow tips that bend toward the tip of each leaf blade.
Flower color
Pink; White
Flower value
Edible; Fragrant; Showy
Flower form
Spike
Flower shape
Tubular
Flower size
1-3 inches
Flower detail
The central stem and any upper lateral stems terminate in dense spikes of whorled flowers about 1 to 6 inches long that appear from July-October. Individual flowers are small, about 1/8 of an inch. The tiny flowers are white to pink.
Bloom time
Fall; Summer
Fruit type
Nut
Fruit detail
Each flower is replaced by four small nutlets in the fall.
Stem detail
Hairless to somewhat hairy square stems.
Wildlife & Ecology
Native status
Non-native
Origin
Europe to China
Distribution
Introduced into Canada, United States, Southeastern South America and Northern Africa.
Wildlife value
Attracts butterflies.
Attracts
Bees; Butterflies; Pollinators
Food & Medicine
Edible parts
Leaves; Flowers
Harvest time
Fall
Fruit type
Nut

Edibility

Fresh or dried leaves and flowers in teas, beverages, sauces, jellies, vinegars; Fresh leaves in fruit salad, peas, syrups, candies, ice creams, lamb dishes, mint sauce.

Uses (ethnobotany)

Spearmint has significant economic value as a flavoring in chewing gum, in tea, and as an essential oil crop.

Landscape Use
Landscape location
Container
Landscape theme
Edible Garden; Pollinator Garden; Rain Garden
Garden tags
#spreading #problem for dogs #problem for horses #problem for cats #container plant #vhfn-h #vhfn #early childhood #fragrant leaves #tea #herb garden #th-taste #child #children #preschool #early care #easy edibles #herbaceous perennial #herb #groundcovers that can be mowed #flowering #weedy #th-touch #th-sowing #th-wildlife #th-smell
Problems & Resistance
Problems
Problem for Cats; Problem for Dogs; Problem for Horses; Weedy
Resistant to
Deer; Diseases; Foot Traffic; Heat; Humidity; Insect Pests; Rabbits; Wet Soil
Propagation
Division; Seed; Stem Cutting
Poison severity
Low
Poison symptoms
Vomiting and diarrhea with large ingestions
Toxic principle
Essential Oils
Contact dermatitis
No
Toxicity summary
Low severity poison

Planted at Hunnicutt

Nobody’s planted this one yet.