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Australia plant library · herb

Mint

Mentha spp. · Lamiaceae

Vigorous, easy perennial herb.

Mint

Photo: Simon Eugster --Simon 13:07, 2 July 2006 (UTC), CC BY-SA 3.0, via Wikimedia Commons

Sun
Part shade to full sun.
Soil
Moist, well-drained and fertile.
Soil pH
Around neutral (about 6.0-7.5).
Water
Water regularly; thrives in moist conditions.
Hardiness
All Australian climate zones.
Height and spread
About 30-60 cm; spreads indefinitely by underground stems (rhizomes).

Guv's tipMint thrives in moist conditions. Remove the flower heads or cut back flowered stems to keep the leafy growth coming.

Through the year

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sow or plant
Harvest

Timings are for temperate Australia. Tropical and arid gardens follow different seasons.

When to plant

Spring to autumn (Sep-Nov is the main planting time in temperate areas).

Harvest or flowering

Harvest leaves spring to autumn; remove flower heads to prolong the harvest.

Pruning

Remove flower heads or cut back flowered stems to prolong leafy growth.

Making more plants

Division or cuttings (also seed).

Watch out for

Pest

Aphids

Look for: Clusters of small sap-suckers on new growth; curled leaves; sticky honeydew.

What to do: Hose off, encourage natural predators, or use insecticidal soap or a registered pyrethrum spray.

Disease

Mint rust

Puccinia menthae

Look for: Dusty orange, yellow, then black spots on leaves; distorted shoots.

What to do: Remove and dispose of affected shoots; replace badly affected plants with clean stock.

Always read and follow the label on any treatment, and check it is approved for use where you live.

Safety and spread

Pets and people: Toxic to dogs, cats and horses (ASPCA): essential oils can cause vomiting and diarrhoea if large amounts are eaten. Other pet-poison lists also advise caution.

Weed risk: Not a declared weed (not listed on Weeds Australia or the Queensland restricted list), but it spreads aggressively by rhizomes - grow it in pots.

Checked against two or more reputable gardening sources. How we check our facts
Keep it by the back door

The Plant Doctor and the Guv's book

Printable pest and disease charts with real photographs, and all 50 Australia plants in one book.

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