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Grow Herbs Indoors in Winter

Herbs to grow indoors in winter include thyme, mint and parsley.
Herbs in pots
Potting up herbs for indoor winter growing

Pot up herbs for fragrant, fresh green leaves indoors in winter.

Herbs set on a sunny window sill through the winter can be used at any time.

Herbs easy to grow in pots indoors include anise, basil, bergamot, borage, calendula, caraway, chamomile, chervil, chives, coriander, dill, lemon balm, lemongrass, pot marigold, marjoram, nasturtium, parsley, peppermint, rosemary, sage, summer savory, and thyme.

Herbs in pots
Culinary herbs for winter growing include sage, oregano, thyme, parsley, mint, and oregano.

Ways to Grow Herbs Indoors

• Annual herbs can be started fresh from seed in fall. Sow seed in 3- to 4-inch (7.6-10cm) pots so they will have room to grow through the winter. Annual herbs include anise, basil, borage, chamomile, chervil, coriander, dill, fennel, pot marigold, sweet marjoram, and summer savory.

• Perennial herbs like sage, chives, and rosemary can be started from cuttings or division. Take 4-inch (10cm) cuttings and root them singly in pots. Cuttings should be taken from new growth. Keep cuttings moist to encourage roots to grow.

• Perennial or annual herbs growing in garden soil in the summer can be potted up for winter indoors. Leave the plants in their new pots outdoors in a shady spot for 1 week before bringing them indoors; this will allow them to adjust to the change in light. Be sure to pot up herbs into containers large enough to accommodate their root system.

• Herbs growing in containers year-round can simply be moved indoors when winter comes. Again be sure to help them adjust to the change in light by setting them in the shade for a week before bringing them indoors.

Herbs in window
Make sure herbs indoors get plenty of light.

What Herbs Need Indoors

• Light: Herbs need plenty of light each day. A sunny window is best. Herbs also can be set under fluorescent lights; set the plants 6 to 8 inches (15-20cm) away from the lights.

• Temperature: Most herbs want daytime temperatures between 60 and 70°F (15.6-21°C) with cooler temperatures of 50 to 65°F (10-18°C) at night. However, most herbs will survive at a constant temperature.

• Water: Water herbs thoroughly then allow the soil to nearly completely dry before watering again. Don’t overwater. If humidity is low, spray plants with a light mist a couple of times a day.

Herbs in large pots
Herbs outdoors in winter need shelter from wind and cold.

Overwintering Herbs Outdoors

Mints, oregano, and tarragon are hardy perennial herbs that can survive outdoors in winter—even under snow. (But if you want to use them fresh through the winter, divide and pot them up to bring inside.) Bay, rosemary, lavender, pineapple sage, and lemon verbena are tender perennials that will take some frost but their roots will be killed off outdoors if the temperature dips below 15°F (-9.4°C).

The best protection or herbs outdoors in winter is a plant blanket or a blanket of snow. Plant blankets are made from spun poly material and can be purchased at most garden shops.

Perennial herbs outdoors in winter need protection from the drying effects of winter wind most. Besides plant blankets, you can cover herbs with evergreen boughs or surround them with burlap-covered frames. Small herbs can be covered with straw or leaves when the soil freezes. Remove the mulch gradually in spring.

More tips at How to Start an Herb Garden.

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5 Comments

  1. Lovely post and tips! I’m a professional gardener and I love my job, but I have no time for maintaining my own garden. A small herb garden in the kitchen is the only one I can take care of right now and that’s what I started in the fall. Each morning while I’m drinking my coffee I have time enough to take care of the plants and they grow quite well. Your tips gave me some good ideas to improve my mini garden and also to add some more species. Thank you for sharing this nice information. Greets, Angela from http://gardenerscamden.org.uk/ 🙂

  2. This was very helpful. I have a question, probably a stupid one, but if you winter-over an annual herb can you simply plant it back outside in the spring or do you need to grow a new one from seed how ever it’s propagated? In other words, are they “annual” because they cannot tolerate cold or because the plant has a one year life-span before it turns woody or just doesn’t taste good anymore?

    • An annual plant will grow for one season; near the end of its life, it will flower and drop seed–so that a new generation can grow. Annuals have different lengths to their life in terms of days, but it is always within the growing season. If the herb you are growing is an annual you can allow it to flower and set seed; you can collect the seed and plant it next year (it will grow just fine, as long as the plant is not a hybrid). When an herb flowers, the leaves will lose flavor; it is best to use annual herbs before they flower and set seed.

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