Horse minth (Mentha longifolia subsp. longifolia)

Horse minth

Also known as: Horsemint

Nicholas Culpeper's Complete Herbal (1653) states that "It is good for wind and colic in the stomach...The juice, laid on warm, helps the King's evil or kernels in the throat...The decoction or distilled water helps a stinking breath, proceeding from corruption of the teeth, and snuffed up the nose, purges the head. It helps the scurf or dandruff of the head used with vinegar."

Scientific classification

Species

Horse minth (Mentha longifolia subsp. longifolia)

Mints plantains olives and allies

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Toxic to Pets

Toxicity

Perennial

Lifespan

Herb

Plant Type

Semi-evergreen

Leaf type

Images of Horse minth

Care Guide for Horse minth

Every week

Water

Full sun

Sunlight

5 - 35 ℃

Ideal Temperature

Water: Horse minth prefers damp environments similar to its native meadows, requiring consistent moisture without waterlogging. Best watered weekly, it thrives outdoors with natural rainfall, favoring well-draining, moisture-retentive soil while showing moderate drought tolerance.

Fertilize: Horse minth benefits from frequent application of quick-acting nitrogen fertilizer, especially when exhibiting slow growth or yellow leaves. Use diluted fertilizer biweekly, increasing to weekly in summer, while avoiding fertilizer in winter when growth slows or halts. Potassium fertilizer should also be used appropriately.

Pruning: For horse minth, prune in early to late spring to control growth and enhance health. Trim leggy or crowded stems for better air circulation. Use sharp, sterilized shears and avoid cutting more than one-third at once to prevent shock and reduce disease risks.

Propagation: Horse minth is a perennial herb that prefers well-drained soil and full sun to partial shade. Propagation via division is ideal, conducted in early spring or fall. Ensure each section has roots and shoots. Maintain consistent moisture without waterlogging until established.

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