Plants > Perennials

horse mint

Mentha longifolia

Fragrant

Genus: Mentha
Family: Lamiaceae
Common Names: brook mint, long-leaved mint, water mint

About this plant

M. longifolia is a spreading perennial, to 1.2m, with hairy, green to grey-green leaves with a musty, minty smell. Branched, tapering spires of tiny, pale purple or white flowers are produced in mid- to late summer

Growing Information

Height

1-1.5 Metres

Spread

1-1.5 Metres

Hardiness

H7

Foliage

Deciduous

Growing Conditions

Sunlight

Full SunPartial Shade

Soil

ClayChalkLoamSandy

pH

Acid

Not Currently Available

This plant is not currently stocked at any garden centres on our platform.

Alkaline

Neutral

Moisture

Poorly DrainedMoist But Well Drained

Aspect

North FacingEast FacingWest FacingSouth Facing

Exposure

ShelteredExposed

Care Guide

Cultivation

Grow in any moist soil, in any situation. To prevent spreading, restrict the root run

Pruning

Cut back after flowering

Propagation

Propagate by seed or division in spring or autumn

Pests

Can get caterpillars, cuckoo spit (froghoppers) and mint beetle

Diseases

May be subject to powdery mildews and mint rust

Garden Uses

Uses

Ground CoverBanks Slopes

Season of Interest

SpringSummerAutumn

Size & Characteristics

Height

1-1.5 Metres

Spread

1-1.5 Metres

Habit

Suckering

Time to Full Height

Five To Ten Years