Age-Old Wisdom meets Modern Tools
Growing Herbs Indoors
Best Herbs for Growing Inside
Even just a few pots of herbs indoors can supply you with wonderful flavors at your fingertips year-round. All you need is a sunny windowsill or grow lights. Here are seven herbs that will grow well indoors.
Everyone has some herbs that they can’t do without. We’re big fans of basil, rosemary, and oregano. Which herbs do you use the most?
These herbs can be grown indoors during winter but also any time of the year. Indoor herbs prefer the same temperatures that most people do—around 65 to 70 degrees F—so it’s a cozy relationship!
Best Herbs to Grow Indoors
- Greek oregano is a perennial best propagated by root division. If you have an established plant just separate off a chunk and pot it up to bring indoors. New plants can be started from seed but may take a few months to reach a harvestable size.
- Basil is an annual so it is best to start new plants from seed or take cuttings from an established plant - they will root in water. Small-leaved varieties like dwarf Greek basil or ‘Finissimo Verde’ are best for windowsill culture but I still grow a pot of ‘Genovese’ and keep the size down by cutting it often.
- Thymes such as caraway, lemon, narrow-leaved French, and English garden thyme are all good culinary types. They are perennials (though some may not be hardy where you live) and new plants can be divided from the parent plant.
- Parsley is a biennial plant, which means that it goes to seed its second season. If you pot up an existing plant, use a deep container to avoid injuring the tap root. New plants can be started from seed.
- Sage is a perennial and can be grown from a softwood cutting or by division. If you want a more decorative plant than ordinary garden sage, try a tri-colored or golden one. Their flavor is not as pronounced but they grow better indoors.
- Rosemary is a tender perennial where I live so I have been growing it in a pot outdoors so I can bring it in when the weather cools down. If you have an established plant outside you can take cuttings. Rosemary can be fussy. It will need bright light, a cool location, lots of air circulation, and frequent misting but the extra pampering is worth the effort, especially if it rewards you with its delicate blue blossoms.
- Cilantro is best started from seed but it grows fast. Use it before it flowers for the best flavor. Keep starting new plants from seed as needed.
We have Herb Growing Guides for all seven of the herbs listed above for information on planting, growing, and harvesting.
Starting Herbs From Seeds Vs. Small Plants
- Perennial herbs, such as rosemary, Greek oregano, thyme, and chives easiest to grow from young plants that you buy at a garden center.
- Some herbs, such as basil, cilantro and chervil, are best started from seed and replanted throughout the year.
- If you are buying small plants, it’s very important to check for pests, especially ahpids (sticky droppings) and spider mites (fine webs on and between the leaves).
Using Small Plants From Your Garden
- You can also use small plants dug from the garden.
- Cut back any plants that you are digging up to bring indoors. They will suffer a bit of shock and may take a while to adjust and start to regrow.
- Be sure to use a large enough pot to accommodate the rootball and remove as much of the old soil as possible to get rid of any insects or their eggs.
- Isolate them from your other houseplants for a few weeks and spray them every 3 to 7 days with a soapy water solution to kill off any hitchhiking pests.
- To encourage new growth, begin fertilizing the plants once you move them to your sunny windowsill.
Tips on Growing Herbs Indoors
- Herbs need 6 to 8 hours of bright light. South-facing windows are usually warmer and good chocies for rosemary, thyme, basil, and oregano.
- East- and west-facing windows that get bright light are fine, but better for herbs that don’t like to get baked such as parsley, chives and chervil.
- Grow Lights work for any herb! Place plants within a foot of full-spectrum bulbs and leave on for 12 to 16 hours a day or as instructed.
Soil and Food
- Be careful not to overwater herbs.
- More tropical or semi-tropical herbs (rosemary, thyme, oregano) do well with equal parts of cactus mix and regular potting soil. Let the soil dry a bit before watering.
- Other herbs grow do best in regular potting soil. Keep soil slightly moist, but never soggy.
- Fertilize once or twice a month with a liquid houseplant fertilizer.
Also, see our video about the best way to preserve and store your herbs.
About This Blog
Get inspired by Robin Sweetser’s backyard gardening tips and tricks. Robin has been a contributor to The Old Farmer’s Almanac and the All-Seasons Garden Guide for many years. She and her partner Tom have a small greenhouse business and also sell plants, cut flowers, and vegetables at their local Farmer’s Market.