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When to Plant Mint in Hardeman County, TN

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

Hardeman County, Tennessee is in USDA Zone 7b. The average last spring frost is March 30 and the first fall frost is October 30, giving you a growing season of approximately 214 days.

At an elevation of 3,185 feet, Hardeman County receives approximately 48.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 92Β°F, providing good warmth for Mint during the growing season.

Hardeman County, TN (Zone 7b) Long season
214 days
Last Spring Frost March 30
214 growing days
First Fall Frost October 30

Hardeman County Soil Profile

Soil Type

Silt Loam

Soil pH

5.2-6.5

Drainage

Well Drained

Monthly Watering Guide for Mint

Mint needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Mint Needs Rainfall You Supplement Action
Jan β€” 3.5" 0" ❄️ Dormant
Feb β€” 4.1" 0" ❄️ Dormant
Mar 4.3" 5.2" 0" βœ… Rainfall sufficient
Apr 4.3" 3.7" 0.6" πŸ’§ Light watering
May 4.3" 3.7" 0.6" πŸ’§ Light watering
Jun 4.3" 3.7" 0.6" πŸ’§ Light watering
Jul 4.3" 5" 0" βœ… Rainfall sufficient
Aug 4.3" 4.6" 0" βœ… Rainfall sufficient
Sep 4.3" 4.1" 0.2" πŸ’§ Light watering
Oct 4.3" 3" 1.3" πŸ’§ Light watering
Nov β€” 3.7" 0" ❄️ Dormant
Dec β€” 4.4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Oct in Hardeman County). Supplement amounts are based on average rainfall β€” actual needs vary with temperature, soil, and mulching.

Mint Planting Timeline β€” Hardeman County, TN

Mint Planting Calendar

Activity When Date Range
Transplant Outdoors April 6 Apr 6 – Apr 20
Harvest June 8 Jun 8 – Aug 17

Plant 0.5" deep Β· 8" apart Β· Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Partial Shade (3-6 hours)

πŸ’§ Water

High β€” keep soil consistently moist

πŸ“… Days to Maturity

60–90 days

πŸ§ͺ Soil pH

Needs 6–7 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 7b

πŸ“† Growing Season

214 days in Hardeman County

Growing Tips for Hardeman County

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 Hardeman County, TN?

Hardeman County is in Zone 7b with an average last frost of March 30. Plan your Mint planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Hardeman County, TN?

Hardeman County, Tennessee is in USDA Hardiness Zone 7b. The average last spring frost is March 30 and first fall frost is October 30.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Hardeman County gardeners in Zone 7b 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 Hardeman County, TN. Local conditions may vary. Last updated: April 2026.