How to grow Mentha longifolia

Mentha longifolia growing herbaceous of the genus Mentha also known as Horse Mint, Mentha longifolia perennial evergreen plant, used as edible plant for the leaves, also used as fragrant plant and as groundcover, can grow in mediterranean, subtropical or temperate climate and growing in hardiness zone 9b-12 and with the right care in hardiness zone 9a.

Mentha longifolia leaves

Leaves color green oval with secreted edges size can 5-10 cm the leaves have strong odor.

Flower color purple, pink or white, the flowers grow on the stem in inflorescence.

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Requirements for Mentha longifolia growing and care:

More than -5c, prefer to grow next to aquatic environment, rich soil

What is the best way to start growing?
Plant / Seed / Vegetative Reproduction – bending a branch over and covering it with soil, better to let the roots grow cut the connection from the mother plant, after disconnect let it 2 weeks and check that the new plant grow new leaves, cutting – two option one to put the stem in water without leaves in the water only in the top or put the stem in soil keep the soil moist don’t let it dry with high humidity

Is it necessary to use vegetative reproduction?
No, but easy to start by cutting or bending a branch

Difficulties or problems when growing:

Planting season:
Spring to summer in hardiness zone 9-10a, spring to autumn in hardiness zone 10b-12

Pests and diseases:

Pruning season:
All year, better in the autumn to the winter

How to prune:
Every stems that start to bloom prune, old branch

Size of the plant?
0.5-1 m, 20-40 inches

Growth speed in optimal condition:
Fast growing

Water requirement:
Average amount of water / Big amount of water

Light conditions in optimal condition for growing:
Full Sun / Half Shade

Is it possible to grow as houseplant?

Growing is also possible in a planter /flowerpot / containers:

Blooming information

Bloom season:
Summer / Autum

General information about the flower
Purple, pink or white flowers grow on the stem in inflorescence

Pollination is done by:
Bees and attract pollinators

Thinning the bloom:
Recommend to thinning the blossom, when the plant bloom it’s harder to harvest the leaves and the leaves in lower quality

Edible leaves

Leaves harvesting season:
In warm weather all year, in cold weather spring, summer if it’s not too cold autumn to winter

How to harvest the leaves?
Cut with the stem few centimeter from the ground or the divided of the stem

Information about leaves:
Green oval leaves with serrated edges with strong odor

Uses of Mentha longifolia leaves:
Beverage, salad

How to grow Mentha longifolia seeds

Sowing requirement:
Moist soil in sunny location

Saving seeds and care until sowing:
Dry and dark location in room temperature

Sowing season:
Spring / Summer

Planting spacing:
20*20cm (8*8 inches)

Depth of Sowing:
0.5cm (0.25 inch)

Conditions for seeds germinate:
High humidity and keep the soil moist all the time

Watering requires for Seeds:
Average amount of water / Big amount of water (don’t let the soil to dry)

Germination time:
2-8 weeks

Condition of seedling:
Moist soil in sunny location

Scientific name:

Mentha longifolia

Blooming Seasons

Edible Parts

Culinary Uses

Flower Colors


Harvest season

Ornamental parts

Plant growing speed

Plant life-form

Plant uses

Planting season

Plants sun exposure

Watering plants

Hardiness zone