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Can You Grow Lemon Balm in Idaho?

US · USDA Zone 6b · zones 3b, 4a, 4b, 5a, 5b, 6a, 6b

Grows well here

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

Plant zones

3a–9b

Idaho last frost

mid-March

Idaho first frost

mid-November

Days to harvest

60–70 days

When to plant Lemon Balms in Idaho

Start indoors

Jan 31

Transplant

Mar 15

Harvest

May 14 – May 24

Dates are approximate, based on Idaho'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 Idaho

Idaho has a semi-arid continental climate. Southern valleys are Zone 6-7 with hot dry summers; northern regions and mountains are colder. Excellent for root vegetables and cool crops.