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Mint (spearmint)

Mentha spicata (also M. x piperita) · Lamiaceae

Easy perennial for teas and drinks

Mint (spearmint)

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

Sun
Full sun to part shade
Soil
Moist, well-drained soil
Soil pH
Slightly acid to neutral, about 6.0-7.0
Water
Keep moist
Hardiness
USDA zones 4-9; hardy to about -20°F
Height and spread
1-2 ft x 1-2 ft (up to 3 ft), spreading by rhizomes and stolons

Guv's tipMint wants to take over, so contain it in pots or with root barriers and cut it back regularly. Trust me on this one.

Through the year

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

Months are a rough guide. Time it by your own frost dates.

When to plant

Early in the growing season, in spring (Apr-May)

Harvest or flowering

Leaves May-Oct; flowers Jul-Oct

Pruning

Cut back regularly. Contain in pots or with root barriers

Making more plants

Division, cuttings or runners

Watch out for

Pest

Aphids

Look for: Curled, yellowed or stunted foliage

What to do: Strong water spray; insecticidal soap

Pest

Spider mites

Look for: Stippled yellow leaves, fine webbing

What to do: Hose off; insecticidal soap

Disease

Mint rust

Puccinia menthae (rust fungus)

Look for: Small whitish spots turning orange-brown pustules on leaf undersides

What to do: Keep leaves dry (drip or morning watering), remove infected stems, thin plantings

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: Essential oils can cause vomiting and diarrhea in dogs, cats and horses if large amounts are eaten (ASPCA, NC State Extension)

Weed risk: Spreads aggressively by rhizomes and can be weedy or quite invasive; flagged in USDA PLANTS invasive data. Not a federally listed noxious weed

Checked against two or more reputable gardening sources. How we check our facts

Growing somewhere else? See this plant for the UK.

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 USA plants in one book.

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