How to Grow Mint
Mark Macdonald | September 09, 2014
The mint family is vast and cross pollination is difficult to control, so many sources suggest that mint will not come true from seed. Our mint seeds are grown in isolation and bred with care in a greenhouse setting. Follow this handy How to Grow Mint for seeds guide and grow some flavour.
Season & Zone
Season: Cool season
Exposure: Full sun to partial shade
Zone: Hardy to Zone 5
Sow indoors 8-10 weeks before last frost, or direct sow in April/May. Seeds should sprout in 10-16 days. Bottom heat will speed germination.
Sow seeds no more than 5mm (¼”) deep in moist soil. Space plants 45-60cm (18-24″) apart.
Mint spreads in the garden with gusto via a vigorous root system, so it may be preferable to confine it to planters on the balcony. Prune plants back hard in early summer to promote good top growth. Bring some inside to grow in a small container over winter if you have a brightly lit windowsill.
Clip leaves or branches as needed throughout the year. Mint is so hardy and tough that it will grow right back. Dry the leaves and flowers for peppermint tea, or use them fresh. The flowers are edible and make salads and sweets come to life.
Mint attracts earthworms, hoverflies and predatory wasps, and repels cabbage moths, aphids, and flea beetles. Mint is invasive, so it may be better to use cut mint as a mulch around Brassicas, or to restrain it in containers around the vegetable garden. Avoid planting near parsley.
Our mint seeds are grown in isolation bred with care in a greenhouse setting. Follow this handy How to Grow Mint for seeds guide and grow some flavour.
How to grow mint
Discover how to grow, harvest and store mint, in this step-by-step Grow Guide.
Published: Saturday, 14 March, 2020 at 9:16 am
Do not Plant in January
Do not Plant in February
Do Plant in March
Do Plant in April
Do Plant in May
Do not Plant in June
Do not Plant in July
Do not Plant in August
Do Plant in September
Do Plant in October
Do Plant in November
Do not Plant in December
Do not Harvest in January
Do not Harvest in February
Do not Harvest in March
Do not Harvest in April
Do Harvest in May
Do Harvest in June
Do Harvest in July
Do Harvest in August
Do Harvest in September
Do Harvest in October
Do Harvest in November
Do not Harvest in December
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Pick leaves as required
From a refreshing tea to a classic sauce for roast lamb and new potatoes, mint is one of the most useful culinary herbs. It’s also one of the best herbs for attracting beneficial insects into the garden, such as hoverflies, lacewings and butterflies.
How to grow mint
Grow mint in moist but well-drained soil in full sun to partial shade. It’s best to grow mint in a pot as it can compete with neighbouring plants when planted in the ground. Harvest as and when you need to, allowing some stems to bear flowers for pollinators. Cut back to ground level in autumn and mulch with well-rotted compost annually.
More on growing mint:
- 10 refreshing varieties of mint to grow
- Mint leaf beetle
- Healing garden herbs to grow
How to plant mint
Mint is a hardy perennial that’s not really worth growing from seed, as it’s so easy to grow from root cuttings or young plants planted in the spring or autumn. It prefers well-drained, fertile soil in light shade where the roots will stay moist but never become waterlogged.
Most mints are invasive, so you may want to restrict their root run by planting in a bottomless bucket sunk into the ground. Or grow them in a pot in free-draining, soil-based compost.
Keep a couple of pots by the kitchen door – one to use for pickings, leaving the mint in the other pot to grow.
How to care for mint
For the best flavour, keep cutting mint to stimulate new leafy growth. After flowering is over in late summer, cut back plants to just above soil level and feed with a high-nitrogen fertiliser to encourage a fresh flush of leaves for autumn picking.
In autumn, divide to make new plants. Lift a clump and chop it into pieces using a spade. Discard the old centre and replant the vigorous outer edges. Divide congested pot-grown mint in autumn. Sit containers on pot feet to avoid waterlogging over winter.
Discover three Golden Rules for caring for herbs, in our video:
Want to harvest mint all though the year? Watch our No Fuss Guide with Alan Titchmarsh, on lifting herbs for winter:
How to harvest mint
Mint, like most herbs, is best used fresh when the volatile oils are at their most intense. You can start harvesting as soon as leaves appear above in spring and continue through to the first frosts. Nipping out the tips of the stems will encourage the plants to bush out.
How to prepare and use mint
Add fresh mint to buttered peas and new potatoes or combine with sugar and white wine vinegar for a classic sauce to accompany roast lamb. Steep a handful of leaves in boiling water, with sugar added to taste, for a soothing mint tea.
Watch this quick 20-second video demonstration from our friends at olive magazine on how to chop fresh mint.
How to store mint
Freezing mint is the next best thing to using it fresh. Wash and shake mint leaves dry, then finely chop. Fill an ice-cube tray with the chopped mint (there’s no need to add water). When frozen, pop the cubes into freezer bags and seal.
Growing mint: problem solving
Check plants regularly for mint rust. Look for swollen stems with orange spots on the leaves. Dig up the plant and bin it. Mint rust remains in the soil for at least three years, so don’t plant other mints, tarragon or chives in that spot after infection.
Find out how to identify and deal with mint beetle, in this clip from Gardeners’ World:
All you need to know about growing mint, in our Grow Guide to planting, maintaining, harvesting, storing and problem solving. BBC Gardeners’ World Magazine.