How to Grow Oregano From Seed

Oregano is a Mediterranean perennial that loves warmth and sun. Start seeds indoors 6 to 8 weeks before your last spring frost, then transplant out once frost danger has passed and the soil is warm. In mild climates you can direct-sow outdoors in late spring. Once established, oregano comes back reliably each year in zones 5 and warmer, and slowly spreads into a fragrant, sprawling mat.

Oregano seeds are tiny and need light to germinate, so do not bury them. Scatter them on the surface of moist seed-starting mix and press them in gently, leaving them uncovered or barely dusted. Keep the soil around 70F and consistently moist, and seedlings will appear in 7 to 15 days. Grow in full sun and well-drained, even slightly poor soil, since rich, soggy ground weakens the flavor. Thin or transplant seedlings to about 8 to 12 inches apart.

Oregano thrives on a little neglect. Let the soil dry out between waterings, since it hates wet feet, and skip heavy feeding, because lean soil gives the leaves a stronger, more aromatic flavor. Give it full sun and good airflow, and pinch the stems often to keep the plant bushy and delay flowering, which is when the leaves turn bitter. Its winter behavior depends entirely on where you garden: as a hardy perennial it returns year after year across most of the country, roughly USDA zones 5 through 9, needing only a light winter mulch in colder states like Minnesota or Vermont, while gardeners in zone 4 and colder often grow it in a pot and bring it inside for winter. In the Deep South and Southwest it can stay evergreen and even sprawl, so cut it back hard each year to keep it tidy and productive.

Oregano is a classic companion herb whose strong scent helps repel aphids and cabbage pests, and its later flowers draw in bees and hoverflies. These four make especially good neighbors, and you can add any of them in one click:

You can start snipping oregano once plants are about 4 to 6 inches tall and bushy. For the best flavor, harvest just before the flower buds open, cutting stems back by up to a third and leaving plenty of leaves to regrow. Cut in the morning after the dew dries. Oregano is one of the few herbs that tastes even stronger dried, so hang bundles in a warm, airy spot, then strip and store the leaves.

Oregano is one of the few herbs that gets stronger dried, so a small pinch goes a long way. Use it fresh toward the end of cooking to keep the aroma bright, and dry the summer surplus for winter. It belongs on pizza and in tomato sauces, and it carries marinades, roasted vegetables, grilled meats, and Greek salads. Strip the tiny leaves from the woody stems before chopping, and go lighter than you would with a milder herb.

• Weak, watery flavor: usually too much water or too-rich soil. Grow oregano lean and dry in full sun for the strongest aroma.
• Leggy, sprawling plants: pinch the tips often to keep it bushy, and shear it back after flowering.
• Root rot: oregano hates soggy soil. Plant in well-drained ground or a pot and let it dry between waterings.
• Spreading out of bounds: contain it in a pot or cut off the flowers before they set seed.