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When to Plant Lemon Balm in Hernando County, FL

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.

Hernando County, Florida is in USDA Zone 9a. The average last spring frost is January 25 and the first fall frost is December 16, giving you a growing season of approximately 325 days.

At an elevation of 245 feet, Hernando County receives approximately 51.5 inches of rainfall annually with predominantly sand soil. Summer highs average 99ยฐF, so Lemon Balm may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Lemon Balm will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lemon Balm root diseases.

Hernando County, FL (Zone 9a) Year-round
325 days
Last Spring Frost January 25
325 growing days
First Fall Frost December 16

Hernando County Soil Profile

Soil Type

Sand

Soil pH

5.1-5.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (206 days to spare)
Transplant: Jan 26 🍅 Harvest: Mar 30 – May 18
Recommended (50%) ✓ Fits season (206 days to spare)
Transplant: Feb 1 🍅 Harvest: Apr 5 – May 24
Safe Start (90%) ✓ Fits season (180 days to spare)
Transplant: Mar 7 🍅 Harvest: May 9 – Jun 27

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
0.7″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,847 gal / 100 sq ft
Lemon Balm needs ~1,576 GDD — county provides 7,905 GDD Excellent fit

Lemon Balm Planting Timeline โ€” Hernando County, FL

Lemon Balm Planting Calendar

Activity When Date Range
Transplant Outdoors February 1 Feb 1 โ€“ Feb 15
Harvest April 5 Apr 5 โ€“ May 24

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

Month-by-Month Timeline

MonthActivities
January โ€”
February Transplant Outdoors
March โ€”
April Harvest
May Harvest
June โ€”
July โ€”
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 9a

Growing Season

325 days

Growing Tips for Hernando 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 Hernando County, FL?

Hernando County is in Zone 9a with an average last frost of January 25. Plan your Lemon Balm planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Hernando County, FL?

Hernando County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is January 25 and first fall frost is December 16.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Hernando County gardeners in Zone 9a 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 Hernando County, FL. Local conditions may vary. Last updated: April 2026.