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When to Plant Mint in Jackson County, TX

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

Jackson County, Texas is in USDA Zone 9a. The average last spring frost is February 21 and the first fall frost is December 5, giving you a growing season of approximately 287 days.

At an elevation of 286 feet, Jackson County receives approximately 64.3 inches of rainfall annually with predominantly loam soil. Summer highs average 103ยฐF, so Mint may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Mint root diseases.

Jackson County, TX (Zone 9a) Year-round
287 days
Last Spring Frost February 21
287 growing days
First Fall Frost December 5

Jackson County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (149 days to spare)
Transplant: Feb 15 🍅 Harvest: Apr 19 – Jun 28
Recommended (50%) ✓ Fits season (147 days to spare)
Transplant: Feb 28 🍅 Harvest: May 2 – Jul 11
Safe Start (90%) ✓ Fits season (139 days to spare)
Transplant: Mar 21 🍅 Harvest: May 23 – Aug 1

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 Jackson County

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

Soil pH

Your soil pH (6.5โ€“7.2) overlaps with Mint's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

The loam soil in Jackson County is excellent for Mint โ€” good drainage, moisture retention, and nutrient holding capacity.

Drainage

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

Organic Matter

Organic matter is moderate (2.0%). Annual compost additions will help Mint.

How to Plant Mint

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

Succession Planting Mint

5
successive plantings in your 287-day season

Sow every 6.9 weeks. Last sowing by Sep 06 to harvest before frost.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.9″/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 3" 2.1" 0.9" ๐Ÿ’ง Light watering
Mar 3" 3.9" 0" โœ… Rainfall sufficient
Apr 3" 6.5" 0" โœ… Rainfall sufficient
May 3" 9" 0" โœ… Rainfall sufficient
Jun 3" 10.4" 0" โœ… Rainfall sufficient
Jul 3" 7.9" 0" โœ… Rainfall sufficient
Aug 3" 8" 0" โœ… Rainfall sufficient
Sep 3" 6" 0" โœ… Rainfall sufficient
Oct 3" 4.8" 0" โœ… Rainfall sufficient
Nov 3" 2.3" 0.7" ๐Ÿ’ง Light watering
Dec 3" 1.7" 1.3" ๐Ÿ’ง Light watering

Water needs are for active growing months only (Febโ€“Dec in Jackson 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 ~2,044 GDD — county provides 7,848 GDD Excellent fit

Mint Planting Timeline โ€” Jackson County, TX

Mint Planting Calendar

Activity When Date Range
Transplant Outdoors February 28 Feb 28 โ€“ Mar 14
Harvest May 2 May 2 โ€“ Jul 11

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

Month-by-Month Timeline

MonthActivities
January โ€”
February Transplant Outdoors
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: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 9a

๐Ÿ“† Growing Season

287 days in Jackson County

Growing Tips for Mint in Jackson County

Direct sow Mint outdoors after February 21 in Jackson County when soil has warmed and frost danger has passed.

With summer highs reaching 103ยฐF in Jackson County, provide afternoon shade for Mint and water deeply in the morning.

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 Jackson County, TX?

Jackson County is in Zone 9a with an average last frost of February 21. Plan your Mint planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Jackson County, TX?

Jackson County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 21 and first fall frost is December 5.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Jackson 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 Jackson County, TX. Local conditions may vary. Last updated: April 2026.