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Can You Grow Oregano in Illinois?

US · USDA Zone 5b · zones 4a, 4b, 5a, 5b, 6a

Grows well here

Oregano thrives here — it loves heat and poor soil making it one of the easiest herbs to grow.

Plant zones

4a–10b

Illinois last frost

early April

Illinois first frost

late October

Days to harvest

Perennial

About Oregano

Oregano is heat-loving drought-tolerant and more flavorful when stressed — poor soil actually produces more aromatic leaves.

Plant in full sun well-drained soil. Harvest before flowering for best flavour. Cut to the ground once or twice a season to encourage fresh growth. Dry or freeze for winter use.

Full oregano growing guide →

Gardening in Illinois

Illinois has a humid continental climate with hot summers and cold winters. Chicago is Zone 5b-6a; southern Illinois is warmer at Zone 6-7. Classic Midwest growing region.