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A picture of a Japanese Mint

Japanese Mint

Mentha arvensis var. piperascens

Photo by neiljones30 (All rights reserved)

Full Sun
Easy care
Moderate watering
Tender

5a-10b

USDA zone

-29°C

Minimum temperature

Expected size

Height
Spread

50cm

Max

1m

20cm

Min

20cm

2 years to reach maturity

Flowering

  • spring
  • summer
  • autumn
  • winter

This plant has a mild fragrance

Japanese Mint Overview

Mentha arvensis var. piperascens commonly known as Japanese Mint is a herbaceous, upright perennial that is well known for its sweet and mild minty aroma from the essential oils found in​ its oval-shaped leaves. It thrives in damp and wet conditions and is a must have if you are fond of other mint varieties. It can become invasive if not controlled like most mints - plant in a pot or area you can keep under control!

Common problems with Japanese Mint

Root Borers

Japanese Mint Companion Plants

How to harvest Japanese Mint

Fresh Apple mint leaves can be harvested as needed as soon as the plant reaches 10cm in height. To dry, cut stalks just before blooming.

How to propagate Japanese Mint

Seed

Sow in Spring, depth 6mm; 15 cm apart directly in the ground. Most mints have fairly aggressive roots, so its best to grow them in containers buried in the soil.

Cuttings

Take 5 to 10 cm stem cuttings and place them in moist and well-draining soil in semi-sun. It should root in under two weeks. Transplant into a larger pot a few weeks after the cuttings have rooted.​

Division

Mentha plants are prone to hybridization, therefore,​ division is a good method if you want to preserve a particular aroma.

Special features of Japanese Mint

Attracts useful insects

Attracts bees and butterflies.

Repels harmful insects

Repels cabbage fly, ants, cabbage looper and aphids.

Pot plant

Often used as an ornamental plant. Because it grows so aggressive, it is a good idea to contain it in a buried pot.

Attractive flowers

Tiny pale-blue purple flowers appear on upright spikes in late summer.

Attractive leaves

Soft hairy rounded leaves that give off its apple scent when touched or rubbed.

Other uses of Japanese Mint

Ornamental plant, can be used as an antiseptic herbal remedy or digestive uses.