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When to Plant Lemon Balm in Leon 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.

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 Lemon Balm during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Lemon Balm will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lemon Balm 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 (132 days to spare)
Transplant: Mar 10 🍅 Harvest: May 12 – Jun 30
Recommended (50%) ✓ Fits season (131 days to spare)
Transplant: Mar 16 🍅 Harvest: May 18 – Jul 6
Safe Start (90%) ✓ Fits season (121 days to spare)
Transplant: Apr 14 🍅 Harvest: Jun 16 – Aug 4

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 Lemon Balm's growing requirements.

Soil pH

Your soil pH (5.4โ€“6.2) overlaps with Lemon Balm's range (5.5โ€“7.5), though not a perfect match.

Soil Texture

Sandy soil in Leon County warms quickly in spring but drains fast. Lemon Balm 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 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 250-day season

Sow every 6.9 weeks. Last sowing by Sep 05 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€” 1.7" 0" โ„๏ธ Dormant
Feb โ€” 2.5" 0" โ„๏ธ Dormant
Mar 2.2" 4.6" 0" โœ… Rainfall sufficient
Apr 2.2" 7" 0" โœ… Rainfall sufficient
May 2.2" 11.4" 0" โœ… Rainfall sufficient
Jun 2.2" 11.2" 0" โœ… Rainfall sufficient
Jul 2.2" 8.7" 0" โœ… Rainfall sufficient
Aug 2.2" 9.6" 0" โœ… Rainfall sufficient
Sep 2.2" 7.3" 0" โœ… Rainfall sufficient
Oct 2.2" 4.3" 0" โœ… Rainfall sufficient
Nov 2.2" 2.7" 0" โœ… Rainfall sufficient
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.

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 ~1,186 GDD — county provides 4,562 GDD Excellent fit

Lemon Balm Planting Timeline โ€” Leon County, TX

Lemon Balm Planting Calendar

Activity When Date Range
Transplant Outdoors March 16 Mar 16 โ€“ Mar 30
Harvest May 18 May 18 โ€“ Jul 6

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

0.5"/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 8a

๐Ÿ“† Growing Season

250 days in Leon County

Growing Tips for Lemon Balm in Leon County

Direct sow Lemon Balm 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 Lemon Balm with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With 73" of annual rainfall in Leon 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 Leon County, TX?

Leon County is in Zone 8a with an average last frost of March 9. Plan your Lemon Balm 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.

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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 Leon County, TX. Local conditions may vary. Last updated: April 2026.