Blog

When to Plant Lemon Balm in Blount County, AL

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.

Blount County, Alabama is in USDA Zone 7a. The average last spring frost is March 31 and the first fall frost is October 31, giving you a growing season of approximately 214 days.

At an elevation of 56 feet, Blount County receives approximately 54.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 88ยฐF, 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.

Blount County, AL (Zone 7a) Long season
214 days
Last Spring Frost March 31
214 growing days
First Fall Frost October 31

Blount County Soil Profile

Soil Type

Clay Loam

Soil pH

5.2-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (94 days to spare)
Transplant: Apr 2 🍅 Harvest: Jun 4 – Jul 23
Recommended (50%) ✓ Fits season (95 days to spare)
Transplant: Apr 7 🍅 Harvest: Jun 9 – Jul 28
Safe Start (90%) ✓ Fits season (94 days to spare)
Transplant: Apr 26 🍅 Harvest: Jun 28 – Aug 16

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
Lemon Balm needs ~1,040 GDD — county provides 3,424 GDD Excellent fit

Lemon Balm Planting Timeline โ€” Blount County, AL

Lemon Balm Planting Calendar

Activity When Date Range
Transplant Outdoors April 7 Apr 7 โ€“ Apr 21
Harvest June 9 Jun 9 โ€“ Jul 28

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 7a

Growing Season

214 days

Growing Tips for Blount 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 Blount County, AL?

Blount County is in Zone 7a with an average last frost of March 31. Plan your Lemon Balm planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Blount County, AL?

Blount County, Alabama is in USDA Hardiness Zone 7a. The average last spring frost is March 31 and first fall frost is October 31.

๐ŸŒฑ

Plan Your Garden with Confidence

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

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

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