Mint is a beloved herb known for enhancing dishes, teas, and cocktails. Cultivating it indoors means having a fresh supply at your fingertips.

If you're curious about growing mint inside, it's quite straightforward. A sunny windowsill can support a flourishing mint plant throughout the year. If you have outdoor mint, consider bringing it inside during colder months to keep it thriving.

There are several cost-effective methods to start growing mint indoors, including propagation techniques. You can also explore a variety of mint types like chocolate mint, orange mint, and strawberry mint, all of which thrive indoors.

Mint growing indoors on a wooden table

There are countless mint varieties worldwide

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Is Indoor Mint Cultivation Feasible?

Success in growing mint indoors hinges on providing adequate light and warmth. Mint thrives in bright conditions but prefers indirect sunlight during summer. East-facing windows are perfect in spring and summer, while south-facing ones are best for fall and winter. Ample light is crucial; otherwise, the plant may become leggy in its quest for more light. If needed, you can supplement with artificial grow lights like this LED Grow Light kit available on Amazon.

Mint prefers daytime temperatures between 65 and 70˚F and should not drop below 55˚F at night. Keep it away from extreme temperature changes, such as near heating or cooling vents.

Planting mint in a large enough container is essential, as it has extensive root systems. It's best to avoid mixing mint with other herbs in the same pot, as it can outgrow and overpower them. Use a well-draining soil-based compost for optimal growth.

Headshot of writer Ruth Hayes
Ruth Hayes

Ruth is a horticulturally trained expert with credentials from the Royal Horticultural Society. She specializes in gardening topics such as planting, pruning, and pest management.

Mint and thyme growing indoors on a windowsill

Providing sufficient light is crucial for indoor herbs

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Steps for Growing Mint Indoors

To grow mint indoors, you can choose from various propagation methods. The simplest option is to purchase a small mint plant from a store and pot it at home.

Alternatively, mint cuttings are easy to root. Cut 5-6 inches from an existing mint plant, remove the lower leaves, and place them in water on a sunny windowsill. Roots will develop quickly, and once they are a few inches long, you can transfer them to your chosen potting mix.

Mint can also be grown from seeds, which are readily available at garden centers or online. Sow the seeds thinly in moist compost, and they should sprout within a few weeks at 70˚F. It usually takes about three months to see your first mint leaves after sowing. You can purchase mint seeds and plants from Burpee.

Mint cuttings in water

Mint roots quickly develop in water

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Caring for Indoor Mint Plants

Mint needs regular watering while growing indoors. Check the soil moisture an inch or two down to ensure the soil is moist but not waterlogged. Water about once a week, being cautious not to overdo it.

Rotate your mint plant weekly to prevent it from leaning toward the light. A simple quarter turn is sufficient. Ensuring good air circulation is vital to avoid fungal diseases, so allow some airflow around the plant.

Fertilization isn't a necessity for indoor mint, and excessive feeding can diminish its flavor. If you choose to fertilize, use a balanced feed at half-strength.

Once your mint is three inches tall, begin harvesting. Snip off stems as needed to promote new growth, keeping the plant bushy. Regularly trimming will prevent leggy growth. These mint clippings can be used in your cooking.

Mint plants that are typically grown outside can be brought indoors in winter to extend their growing period. Hardy perennial herbs like mint can continue to thrive, albeit at a slower pace, allowing for fresh mint during the colder months.

Headshot of Lucy Chamberlain
Lucy Chamberlain

Lucy has extensive experience in horticulture and has served as a Head Gardener on a large estate. She frequently writes on gardening topics.


Growing mint indoors provides more than just fresh leaves for your dishes. This aromatic herb can deter pests like ants and flies, making it a practical choice for your home.