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Can You Grow Lemon Balm in Illinois?

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

Grows well here

Lemon balm grows as a vigorous perennial in your zone — contain it or it will take over.

Plant zones

3a–9b

Illinois last frost

early April

Illinois first frost

late October

Days to harvest

60–70 days

When to plant Lemon Balms in Illinois

Start indoors

Feb 23

Transplant

Apr 7

Harvest

Jun 6 – Jun 16

Dates are approximate, based on Illinois's average frost dates. Your exact yard may vary by microclimate.

About Lemon Balm

Lemon balm is a prolific mint-family herb with bright citrus fragrance. Used for teas, desserts, and calming remedies. Warning: it self-seeds aggressively — grow in containers to prevent garden takeover.

Grow in a container to control spreading. Harvest before flowering for best flavor. Cut back hard in midsummer to encourage fresh growth. Tolerates partial shade better than most herbs.

Full lemon balm 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.