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When to Plant Mint in Leon County, TX

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

Leon County, Texas is in USDA Zone 8a. The average last spring frost is March 9 and the first fall frost is November 14, giving you a growing season of approximately 250 days.

At an elevation of 226 feet, Leon County receives approximately 72.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 91ยฐF, 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.

Leon County, TX (Zone 8a) Long season
250 days
Last Spring Frost March 9
250 growing days
First Fall Frost November 14

Leon County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.4-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (111 days to spare)
Transplant: Mar 10 🍅 Harvest: May 12 – Jul 21
Recommended (50%) ✓ Fits season (110 days to spare)
Transplant: Mar 16 🍅 Harvest: May 18 – Jul 27
Safe Start (90%) ✓ Fits season (100 days to spare)
Transplant: Apr 14 🍅 Harvest: Jun 16 – Aug 25

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 Leon County

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

Soil pH

Your soil pH (5.4โ€“6.2) is more acidic than Mint prefers (6.0โ€“7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is low (1.9%). 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

4
successive plantings in your 250-day season

Sow every 6.9 weeks. Last sowing by Aug 16 to harvest before frost.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
1.2″/week
Watering frequency Natural rainfall sufficient
Season total 0 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 โ€” 1.7" 0" โ„๏ธ Dormant
Feb โ€” 2.5" 0" โ„๏ธ Dormant
Mar 3" 4.6" 0" โœ… Rainfall sufficient
Apr 3" 7" 0" โœ… Rainfall sufficient
May 3" 11.4" 0" โœ… Rainfall sufficient
Jun 3" 11.2" 0" โœ… Rainfall sufficient
Jul 3" 8.7" 0" โœ… Rainfall sufficient
Aug 3" 9.6" 0" โœ… Rainfall sufficient
Sep 3" 7.3" 0" โœ… Rainfall sufficient
Oct 3" 4.3" 0" โœ… Rainfall sufficient
Nov 3" 2.7" 0.3" ๐Ÿ’ง Light watering
Dec โ€” 1.8" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Leon 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 ~1,369 GDD — county provides 4,562 GDD Excellent fit

Mint Planting Timeline โ€” Leon County, TX

Mint Planting Calendar

Activity When Date Range
Transplant Outdoors March 16 Mar 16 โ€“ Mar 30
Harvest May 18 May 18 โ€“ Jul 27

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Transplant Outdoors
April โ€”
May Harvest
June Harvest
July Harvest
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 Natural rainfall sufficient

๐Ÿ“… Days to Maturity

60โ€“90 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

250 days in Leon County

Growing Tips for Mint in Leon County

Direct sow Mint outdoors after March 09 in Leon County when soil has warmed and frost danger has passed.

Sandy soil in Leon 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 Leon County, TX?

Leon County is in Zone 8a with an average last frost of March 9. Plan your Mint planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Leon County, TX?

Leon County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 9 and first fall frost is November 14.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Leon County gardeners in Zone 8a 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 Leon County, TX. Local conditions may vary. Last updated: April 2026.