Herbs That Grow Indoors

Most herb plants can be brought inside to wait out the winter, but it's only annual herbs that can exist their whole life cycle indoors, according to West Virginia University Extension. When growing herbs, either inside or outdoors, the key to flavorful and aromatic herbs is to give them a little tough love. Water herbs sparingly and allow the soil to dry completely between watering. Fertilizer should be used sparingly, as too much creates weak, tasteless plants.

Basil

This popular herb is often found in outdoor herb gardens, but is capable of thriving indoors as well. Basil requires full sun for at least six hours per day. Setting basil in a sunroom or, at the very least, in front of a south-facing window is best. Basil plants can reach a height of two feet and, if their leaves are harvested correctly, bush out considerably. With this in mind, it is recommended to plant basil in an eight-inch pot or larger, to accommodate its root system, according to University of Illinois.

Oregano

Oregano is classified as a tender perennial, making it suitable for both outdoor and indoor growing. It's a staple in both Italian and Greek cooking, making it a great addition to an indoor herb collection. Oregano can be grown in either partial shade or full sun, but for a more intense fragrance and flavor, full sun is recommended, states Herb Society.

Rosemary

Rosemary comes in several varieties, the most common being Rosemarinus officinalis. It can grow as an upright plant, with long, thin branches, or as a ground-hugging bush. The upright variety is recommended for culinary use and is better suited to indoor growing because of its compact size. Rosemary requires full sun exposure, with soil that is moist, but never soggy, according to University of Illinois.

Marjoram

Marjoram is related to oregano, as both come from the genus Origanum. As withoOregano, marjoram prefers full sun exposure in order to produce more of its essential oil and a stronger flavor. Marjoram is a slow-growing herb, but at its full height, can reach one foot. Origanums, such as oregano and marjoram, are often mislabeled by inexperienced greenhouses. Before purchasing starter plants, give them a sniff check to be sure they are labeled correctly, suggests Herb Society.

Parsley

Best known as a garnish, this leafy herb can often be found atop pastas, soups and salads. Parsley is available in the flat-leaf or curly variety and can grow to a height of eight to 12 inches tall. It will thrive in either full sun or partial shade. When harvesting parsley, always take cuttings from the outer leaves first, states University of Illinois.