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When to Plant Lemon Balm in Webster County, KY

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.

Webster County, Kentucky is in USDA Zone 6b. The average last spring frost is April 6 and the first fall frost is October 31, giving you a growing season of approximately 208 days.

At an elevation of 2,039 feet, Webster County receives approximately 46.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90ยฐF, providing good warmth for Lemon Balm during the growing season.

Webster County, KY (Zone 6b) Long season
208 days
Last Spring Frost April 6
208 growing days
First Fall Frost October 31

Webster County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (88 days to spare)
Transplant: Apr 5 🍅 Harvest: Jun 7 – Jul 26
Recommended (50%) ✓ Fits season (89 days to spare)
Transplant: Apr 13 🍅 Harvest: Jun 15 – Aug 3
Safe Start (90%) ✓ Fits season (96 days to spare)
Transplant: Apr 24 🍅 Harvest: Jun 26 – Aug 14

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
1.0″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 98 gal / 100 sq ft
Lemon Balm needs ~1,138 GDD — county provides 3,640 GDD Excellent fit

Lemon Balm Planting Timeline โ€” Webster County, KY

Lemon Balm Planting Calendar

Activity When Date Range
Transplant Outdoors April 13 Apr 13 โ€“ Apr 27
Harvest June 15 Jun 15 โ€“ Aug 3

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 Harvest
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 6b

Growing Season

208 days

Growing Tips for Webster 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 Webster County, KY?

Webster County is in Zone 6b with an average last frost of April 6. Plan your Lemon Balm planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Webster County, KY?

Webster County, Kentucky is in USDA Hardiness Zone 6b. The average last spring frost is April 6 and first fall frost is October 31.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Webster County gardeners in Zone 6b 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 Webster County, KY. Local conditions may vary. Last updated: April 2026.