Rosemary is a very popular herb for its many uses, such as in potpourris and aromatherapy as well as flavoring many dishes! Start the seeds early indoors for a better harvest. Rosemary should be set outside early and will tolerate light frost.


Learning Download: How to Grow Rosemary

Rosemary is a bushy plant with aromatic leaves. It is most often used to flavor meats and vegetables, but it also can be used as a garnish or dried and made into aromatic potpourris. Rosemary is a perennial plant with a woody stem that is often recognized for its hardiness.

Before Planting: When beginning rosemary from seed, understand it is a slow-to-grow, woody perennial that will not be ready to harvest its first year. Soak seeds up to six hours in water to encourage the germination process.

Planting: Sow seeds indoors in mid-February to April and transplant or direct sow into the garden in May. When planting seeds, barely cover them with a seed starting mix and apply bottom heat. Keep rosemary in its own pot during its first year of growth, but you can transplant it to the garden the following spring.

Watering: Keep rosemary watered during hot weather and apply mulch around the plant once winter approaches.

Fertilizer: To correctly fertilize rosemary, fertilize with weekly applications of a high-nitrogen formula during the spring months but withhold fertilizer during the fall and winter. Sprinkle the organic matter around the base of the plant and cultivate it into the soil. Rosemary also can be harvested with a continuous release fertilizer.

Days to Maturity: Rosemary is a slow-to-grow perennial that may take up to a year to be ready to harvest. (See variety for days to harvest)

Harvesting: To harvest rosemary, pull individual leaves off the plant or cut entire stems. Rosemary is also often used dried. To dry rosemary, hang bunches of the plant upside down on a rack. Strip the leaves from the stems once the stems are dry.

Tips: Grow rosemary near beans, Brassicas or carrots.

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