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When to Plant Lemon Balm in Sherman 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.

Sherman County, Texas is in USDA Zone 6b. The average last spring frost is April 20 and the first fall frost is October 18, giving you a growing season of approximately 181 days.

At an elevation of 3,372 feet, Sherman County receives approximately 46.5 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.

Sherman County, TX (Zone 6b) Moderate season
181 days
Last Spring Frost April 20
181 growing days
First Fall Frost October 18

Sherman County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.6-8.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (62 days to spare)
Transplant: Apr 21 🍅 Harvest: Jun 23 – Aug 11
Recommended (50%) ✓ Fits season (62 days to spare)
Transplant: Apr 27 🍅 Harvest: Jun 29 – Aug 17
Safe Start (90%) ✓ Fits season (63 days to spare)
Transplant: May 13 🍅 Harvest: Jul 15 – Sep 2

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 Sherman County

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

Soil pH

Your soil pH (7.6โ€“8.1) is more alkaline than Lemon Balm prefers (5.5โ€“7.5). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Sherman 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 (1.0%). 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

3
successive plantings in your 181-day season

Sow every 6.9 weeks. Last sowing by Aug 09 to harvest before frost.

Plant Water Budget

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

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

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€” 3.3" 0" โ„๏ธ Dormant
Feb โ€” 2.7" 0" โ„๏ธ Dormant
Mar โ€” 2.7" 0" โ„๏ธ Dormant
Apr 2.2" 1.7" 0.5" ๐Ÿ’ง Light watering
May 2.2" 1.1" 1.1" ๐Ÿšฟ Regular watering
Jun 2.2" 1.6" 0.6" ๐Ÿ’ง Light watering
Jul 2.2" 7.8" 0" โœ… Rainfall sufficient
Aug 2.2" 9.3" 0" โœ… Rainfall sufficient
Sep 2.2" 5.6" 0" โœ… Rainfall sufficient
Oct 2.2" 4.9" 0" โœ… Rainfall sufficient
Nov โ€” 3" 0" โ„๏ธ Dormant
Dec โ€” 3" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Oct in Sherman 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 3,303 GDD Excellent fit

Lemon Balm Planting Timeline โ€” Sherman County, TX

Lemon Balm Planting Calendar

Activity When Date Range
Transplant Outdoors April 27 Apr 27 โ€“ May 11
Harvest June 29 Jun 29 โ€“ Aug 17

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 Transplant Outdoors
June Harvest
July Harvest
August Harvest
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: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 6b

๐Ÿ“† Growing Season

181 days in Sherman County

Growing Tips for Lemon Balm in Sherman County

Direct sow Lemon Balm outdoors after April 20 in Sherman County when soil has warmed and frost danger has passed.

Sandy soil in Sherman 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.

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 Sherman County, TX?

Sherman County is in Zone 6b with an average last frost of April 20. Plan your Lemon Balm planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Sherman County, TX?

Sherman County, Texas is in USDA Hardiness Zone 6b. The average last spring frost is April 20 and first fall frost is October 18.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Sherman County gardeners in Zone 6b 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 Sherman County, TX. Local conditions may vary. Last updated: April 2026.