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When to Plant Lemon Balm in Clarke County, GA

Lemon balm is a vigorous perennial herb with bright green, lemon-scented leaves. It makes a refreshing tea and is easy to grow but can spread aggressively.

Clarke County, Georgia is in USDA Zone 7b. The average last spring frost is March 26 and the first fall frost is November 10, giving you a growing season of approximately 229 days.

At an elevation of 286 feet, Clarke County receives approximately 60.1 inches of rainfall annually with predominantly clay loam soil. Summer highs average 94ยฐF, providing good warmth for Lemon Balm during the growing season. Clay soil retains moisture well for Lemon Balm, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lemon Balm root diseases.

Clarke County, GA (Zone 7b) Long season
229 days
Last Spring Frost March 26
229 growing days
First Fall Frost November 10

Clarke County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (109 days to spare)
Transplant: Mar 25 🍅 Harvest: May 27 – Jul 15
Recommended (50%) ✓ Fits season (110 days to spare)
Transplant: Apr 2 🍅 Harvest: Jun 4 – Jul 23
Safe Start (90%) ✓ Fits season (109 days to spare)
Transplant: Apr 23 🍅 Harvest: Jun 25 – Aug 13

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Lemon Balm needs ~1,332 GDD — county provides 4,694 GDD Excellent fit

Lemon Balm Planting Timeline โ€” Clarke County, GA

Lemon Balm Planting Calendar

Activity When Date Range
Transplant Outdoors April 2 Apr 2 โ€“ Apr 16
Harvest June 4 Jun 4 โ€“ Jul 23

Plant 0.5" deep ยท 8" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April Transplant Outdoors
May โ€”
June Harvest
July Harvest
August โ€”
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate โ€” regular watering

Days to Maturity

60โ€“70 days

Soil pH

5.5 โ€“ 7.5

USDA Zone

Zone 7b

Growing Season

229 days

Growing Tips for Clarke County

Start from seed, cuttings, or divisions. Contain in pots or use barriers to prevent spreading. Harvest frequently to keep plants bushy and prevent flowering.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Lemon Balm in Clarke County, GA?

Clarke County is in Zone 7b with an average last frost of March 26. Plan your Lemon Balm planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Clarke County, GA?

Clarke County, Georgia is in USDA Hardiness Zone 7b. The average last spring frost is March 26 and first fall frost is November 10.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Clarke County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Clarke County, GA. Local conditions may vary. Last updated: April 2026.