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When to Plant Lemon Balm in San Saba County, TX

San Saba County, Texas Zone 8b May

What to do in May

Welcome to May in Zone 8b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost March 19
Avg. first frost November 14
Soil temp (4") 66°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Bring in the lemon balm

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

June prep starts now
  • First harvests: lemon balm

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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.

San Saba County, Texas is in USDA Zone 8b. The average last spring frost is March 19 and the first fall frost is November 14, giving you a growing season of approximately 240 days.

At an elevation of 3,436 feet, San Saba County receives approximately 60.8 inches of rainfall annually with predominantly loam soil. Summer highs average 93°F, providing good warmth for Lemon Balm during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lemon Balm root diseases.

San Saba County, TX (Zone 8b) Long season
240 days
Last Spring Frost March 19
240 growing days
First Fall Frost November 14
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San Saba County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (127 days to spare)
Transplant: Mar 15 🍅 Harvest: May 17 – Jul 5
Recommended (50%) ✓ Fits season (121 days to spare)
Transplant: Mar 26 🍅 Harvest: May 28 – Jul 16
Safe Start (90%) ✓ Fits season (114 days to spare)
Transplant: Apr 19 🍅 Harvest: Jun 21 – Aug 9

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 San Saba County

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

Soil pH

Your soil pH (6.7–7.3) is within Lemon Balm's preferred range (5.5–7.5).

Soil Texture

The loam soil in San Saba County is excellent for Lemon Balm — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.0%). 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 240-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
1.1″/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 1.6" 0" ❄️ Dormant
Feb 2" 0" ❄️ Dormant
Mar 2.2" 4" 0" ✅ Rainfall sufficient
Apr 2.2" 6" 0" ✅ Rainfall sufficient
May 2.2" 9.6" 0" ✅ Rainfall sufficient
Jun 2.2" 10.7" 0" ✅ Rainfall sufficient
Jul 2.2" 8.1" 0" ✅ Rainfall sufficient
Aug 2.2" 6.9" 0" ✅ Rainfall sufficient
Sep 2.2" 5.2" 0" ✅ Rainfall sufficient
Oct 2.2" 3.6" 0" ✅ Rainfall sufficient
Nov 2.2" 1.8" 0.4" 💧 Light watering
Dec 1.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in San Saba County). Supplement amounts are based on average rainfall — 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" — every day above 50°F 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 ~1,284 GDD — county provides 4,740 GDD Excellent fit

Lemon Balm Planting Timeline — San Saba County, TX

Lemon Balm Planting Calendar

Activity When Date Range
Transplant Outdoors March 26 Mar 26 – Apr 9
Harvest May 28 May 28 – Jul 16

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

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April Transplant Outdoors
May Harvest
June Harvest
July Harvest
August
September
October
November
December
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Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

60–70 days

🧪 Soil pH

Needs 5.5–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 8b

📆 Growing Season

240 days in San Saba County

Growing Tips for Lemon Balm in San Saba County

Direct sow Lemon Balm outdoors after March 19 in San Saba County when soil has warmed and frost danger has passed.

With 61" of annual rainfall in San Saba County, ensure good drainage for Lemon Balm — 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 San Saba County, TX?

San Saba County is in Zone 8b with an average last frost of March 19. Plan your Lemon Balm planting based on this frost date — see the calendar above for exact timing.

What planting zone is San Saba County, TX?

San Saba County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 19 and first fall frost is November 14.

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Your San Saba County Garden Planner — Free

A 24-page printable planner built for San Saba County (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 San Saba County, TX. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.