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When to Plant Mint in Lee County, FL

Mint is a vigorous perennial herb with refreshing, aromatic leaves used in teas, cocktails, and cooking. It spreads aggressively by underground runners.

Lee County, Florida is in USDA Zone 10a. The average last spring frost is January 28 and the first fall frost is December 19, giving you a growing season of approximately 325 days.

At an elevation of 408 feet, Lee County receives approximately 61.6 inches of rainfall annually with predominantly sand soil. Summer highs average 86ยฐF, providing good warmth for Mint during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Mint will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Mint root diseases.

Lee County, FL (Zone 10a) Year-round
325 days
Last Spring Frost January 28
325 growing days
First Fall Frost December 19

Lee 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 (183 days to spare)
Transplant: Jan 26 🍅 Harvest: Mar 30 – Jun 8
Recommended (50%) ✓ Fits season (185 days to spare)
Transplant: Feb 4 🍅 Harvest: Apr 8 – Jun 17
Safe Start (90%) ✓ Fits season (157 days to spare)
Transplant: Mar 8 🍅 Harvest: May 10 – Jul 19

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.

Soil Compatibility in Lee County

How your county's soil matches Mint's growing requirements.

Soil pH

Your soil pH (5.1โ€“5.9) is more acidic than Mint prefers (6.0โ€“7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Lee County warms quickly in spring but drains fast. Mint will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Mint is a heavy drinker but your soil drains very quickly. Mulch heavily and consider drip irrigation.

Organic Matter

Organic matter is low (1.4%). Add 2-3 inches of compost before planting Mint.

How to Plant Mint

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Succession Planting Mint

6
successive plantings in your 325-day season

Sow every 6.9 weeks. Last sowing by Sep 20 to harvest before frost.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.8″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 338 gal / 100 sq ft

Monthly Watering Guide for Mint

Mint needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.

Month Mint Needs Rainfall You Supplement Action
Jan 3" 3" 0" โœ… Rainfall sufficient
Feb 3" 3.3" 0" โœ… Rainfall sufficient
Mar 3" 3.6" 0" โœ… Rainfall sufficient
Apr 3" 2.8" 0.2" ๐Ÿ’ง Light watering
May 3" 4" 0" โœ… Rainfall sufficient
Jun 3" 7.6" 0" โœ… Rainfall sufficient
Jul 3" 10" 0" โœ… Rainfall sufficient
Aug 3" 7.7" 0" โœ… Rainfall sufficient
Sep 3" 9.3" 0" โœ… Rainfall sufficient
Oct 3" 5.1" 0" โœ… Rainfall sufficient
Nov 3" 2.7" 0.3" ๐Ÿ’ง Light watering
Dec 3" 2.5" 0.5" ๐Ÿ’ง Light watering

Water needs are for active growing months only (Janโ€“Dec in Lee County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Mint Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" โ€” every day above 50ยฐF deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Mint needs ~1,088 GDD — county provides 4,727 GDD Excellent fit

Mint Planting Timeline โ€” Lee County, FL

Mint Planting Calendar

Activity When Date Range
Transplant Outdoors February 4 Feb 4 โ€“ Feb 18
Harvest April 8 Apr 8 โ€“ Jun 17

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 Harvest
July โ€”
August โ€”
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Partial Shade (3-6 hours)

๐Ÿ’ง Water

0.7"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

60โ€“90 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 10a

๐Ÿ“† Growing Season

325 days in Lee County

Growing Tips for Mint in Lee County

Direct sow Mint outdoors after January 28 in Lee County when soil has warmed and frost danger has passed.

Sandy soil in Lee County dries quickly โ€” mulch Mint with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

General growing tips

Always grow mint in containers or with underground barriers to control spreading. Harvest regularly to keep plants compact. Cut plants back in late summer for a fresh fall flush.

Companion Planting

Good Companions

Avoid Planting Near

  • Parsley

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Mint in Lee County, FL?

Lee County is in Zone 10a with an average last frost of January 28. Plan your Mint planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Lee County, FL?

Lee County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is January 28 and first fall frost is December 19.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Lee County gardeners in Zone 10a 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 Lee County, FL. Local conditions may vary. Last updated: April 2026.