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When to Plant Lemon Balm in Bastrop 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.

Bastrop County, Texas is in USDA Zone 8b. The average last spring frost is February 27 and the first fall frost is December 1, giving you a growing season of approximately 277 days.

At an elevation of 3,716 feet, Bastrop County receives approximately 57 inches of rainfall annually with predominantly clay soil. Summer highs average 91ยฐF, 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.

Bastrop County, TX (Zone 8b) Year-round
277 days
Last Spring Frost February 27
277 growing days
First Fall Frost December 1

Bastrop County Soil Profile

Soil Type

Clay

Soil pH

7.2-7.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (160 days to spare)
Transplant: Feb 20 🍅 Harvest: Apr 24 – Jun 12
Recommended (50%) ✓ Fits season (158 days to spare)
Transplant: Mar 6 🍅 Harvest: May 8 – Jun 26
Safe Start (90%) ✓ Fits season (147 days to spare)
Transplant: Mar 29 🍅 Harvest: May 31 – Jul 19

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 Bastrop County

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

Soil pH

Your soil pH (7.2โ€“7.9) is more alkaline than Lemon Balm prefers (5.5โ€“7.5). Add sulfur or peat moss to lower pH.

Soil Texture

Heavy clay soil (47% clay) in Bastrop County compacts easily and drains slowly. Amend with compost and avoid working soil when wet.

Organic Matter

Organic matter is moderate (3.0%). 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

5
successive plantings in your 277-day season

Sow every 6.9 weeks. Last sowing by Sep 22 to harvest before frost.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.9″/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€” 1.5" 0" โ„๏ธ Dormant
Feb 2.2" 2.1" 0.1" ๐Ÿ’ง Light watering
Mar 2.2" 4.1" 0" โœ… Rainfall sufficient
Apr 2.2" 6.1" 0" โœ… Rainfall sufficient
May 2.2" 8.8" 0" โœ… Rainfall sufficient
Jun 2.2" 9.4" 0" โœ… Rainfall sufficient
Jul 2.2" 6.7" 0" โœ… Rainfall sufficient
Aug 2.2" 5.8" 0" โœ… Rainfall sufficient
Sep 2.2" 5.6" 0" โœ… Rainfall sufficient
Oct 2.2" 3.5" 0" โœ… Rainfall sufficient
Nov 2.2" 1.9" 0.3" ๐Ÿ’ง Light watering
Dec 2.2" 1.5" 0.7" ๐Ÿ’ง Light watering

Water needs are for active growing months only (Febโ€“Dec in Bastrop 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 5,073 GDD Excellent fit

Lemon Balm Planting Timeline โ€” Bastrop County, TX

Lemon Balm Planting Calendar

Activity When Date Range
Transplant Outdoors March 6 Mar 6 โ€“ Mar 20
Harvest May 8 May 8 โ€“ Jun 26

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 โ€”
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: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 8b

๐Ÿ“† Growing Season

277 days in Bastrop County

Growing Tips for Lemon Balm in Bastrop County

Direct sow Lemon Balm outdoors after February 27 in Bastrop County when soil has warmed and frost danger has passed.

With Bastrop County's clay soil (47% clay), work in 3-4 inches of compost before planting Lemon Balm. Avoid tilling when soil is wet to prevent compaction.

With 57" of annual rainfall in Bastrop 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 Bastrop County, TX?

Bastrop County is in Zone 8b with an average last frost of February 27. Plan your Lemon Balm planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Bastrop County, TX?

Bastrop County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is February 27 and first fall frost is December 1.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Bastrop County gardeners in Zone 8b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Bastrop County, TX. Local conditions may vary. Last updated: April 2026.