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When to Plant Lemon Balm in Jack County, TX

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.

Jack County, Texas is in USDA Zone 7b. The average last spring frost is March 26 and the first fall frost is November 9, giving you a growing season of approximately 228 days.

At an elevation of 2,081 feet, Jack County receives approximately 66.9 inches of rainfall annually with predominantly clay soil. Summer highs average 89ยฐF, providing good warmth for Lemon Balm during the growing season. Clay soil retains moisture well for Lemon Balm, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lemon Balm root diseases.

Jack County, TX (Zone 7b) Long season
228 days
Last Spring Frost March 26
228 growing days
First Fall Frost November 9

Jack County Soil Profile

Soil Type

Clay

Soil pH

7.3-7.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (109 days to spare)
Transplant: Mar 26 🍅 Harvest: May 28 – Jul 16
Recommended (50%) ✓ Fits season (109 days to spare)
Transplant: Apr 2 🍅 Harvest: Jun 4 – Jul 23
Safe Start (90%) ✓ Fits season (103 days to spare)
Transplant: Apr 23 🍅 Harvest: Jun 25 – Aug 13

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 Jack County

How your county's soil matches Lemon Balm's growing requirements.

Soil pH

Your soil pH (7.3โ€“7.6) overlaps with Lemon Balm's range (5.5โ€“7.5), though not a perfect match.

Soil Texture

Heavy clay soil (42% clay) in Jack County compacts easily and drains slowly. Amend with compost and avoid working soil when wet.

Drainage

Drainage is adequate for Lemon Balm.

Organic Matter

Organic matter is moderate (3.2%). Annual compost additions will help Lemon Balm.

How to Plant Lemon Balm

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

Succession Planting Lemon Balm

4
successive plantings in your 228-day season

Sow every 6.9 weeks. Last sowing by Aug 31 to harvest before frost.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
1.2″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Lemon Balm

Lemon Balm needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Lemon Balm Needs Rainfall You Supplement Action
Jan โ€” 2" 0" โ„๏ธ Dormant
Feb โ€” 2.3" 0" โ„๏ธ Dormant
Mar 2.2" 3.7" 0" โœ… Rainfall sufficient
Apr 2.2" 8" 0" โœ… Rainfall sufficient
May 2.2" 9.7" 0" โœ… Rainfall sufficient
Jun 2.2" 9.6" 0" โœ… Rainfall sufficient
Jul 2.2" 8.5" 0" โœ… Rainfall sufficient
Aug 2.2" 7.6" 0" โœ… Rainfall sufficient
Sep 2.2" 6.7" 0" โœ… Rainfall sufficient
Oct 2.2" 4.3" 0" โœ… Rainfall sufficient
Nov 2.2" 2.6" 0" โœ… Rainfall sufficient
Dec โ€” 1.7" 0" โ„๏ธ Dormant

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

Lemon Balm 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.

Lemon Balm needs ~1,089 GDD — county provides 3,819 GDD Excellent fit

Lemon Balm Planting Timeline โ€” Jack County, TX

Lemon Balm Planting Calendar

Activity When Date Range
Transplant Outdoors April 2 Apr 2 โ€“ Apr 16
Harvest June 4 Jun 4 โ€“ Jul 23

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April Transplant Outdoors
May โ€”
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

0.5"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

60โ€“70 days

๐Ÿงช Soil pH

Needs 5.5โ€“7.5 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

228 days in Jack County

Growing Tips for Lemon Balm in Jack County

Direct sow Lemon Balm outdoors after March 26 in Jack County when soil has warmed and frost danger has passed.

With Jack County's clay soil (42% clay), work in 3-4 inches of compost before planting Lemon Balm. Avoid tilling when soil is wet to prevent compaction.

With 67" of annual rainfall in Jack County, ensure good drainage for Lemon Balm โ€” excess moisture can promote root rot and fungal diseases.

General growing tips

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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Lemon Balm in Jack County, TX?

Jack County is in Zone 7b with an average last frost of March 26. Plan your Lemon Balm planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Jack County, TX?

Jack County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 26 and first fall frost is November 9.

๐ŸŒฑ

Plan Your Garden with Confidence

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