Blog

When to Plant Lavender in Gregg County, TX

Gregg County, Texas Zone 8b May

What to do in May

Each item below is timed to Gregg County, Texas's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 9
Avg. first frost November 17
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
To set up a strong June, finish these tasks
  • First harvests: lavender

Instant PDF download. No spam, unsubscribe any time.

Lavender is a fragrant perennial herb with silvery foliage and purple flower spikes. It is prized for its essential oils, culinary uses, and ornamental beauty.

Gregg County, Texas is in USDA Zone 8b. The average last spring frost is March 9 and the first fall frost is November 17, giving you a growing season of approximately 253 days.

At an elevation of 337 feet, Gregg County receives approximately 74.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96°F, so Lavender may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Lavender will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lavender root diseases.

Gregg County, TX (Zone 8b) Long season
253 days
Last Spring Frost March 9
253 growing days
First Fall Frost November 17

Gregg County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.5-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (6 days to spare)
Transplant: Mar 7 🍅 Harvest: Jun 6 – Nov 7
Recommended (50%) ✓ Fits season (1 days to spare)
Transplant: Mar 16 🍅 Harvest: Jun 15 – Nov 16
Safe Start (90%) ✗ May not fit
Transplant: Apr 5 🍅 Harvest: Jul 5 – Dec 6

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 Gregg County

How your county's soil matches Lavender's growing requirements.

Soil pH

Your soil pH (5.5–6.3) is more acidic than Lavender prefers (6.5–8.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Gregg County warms quickly in spring but drains fast. Lavender will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Lavender.

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Lavender.

How to Plant Lavender

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

Plant Water Budget

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

Monthly Watering Guide for Lavender

Lavender needs approximately 0.3 inches of water per week (1.3" per month). Here's how your county's rainfall compares month by month.

Month Lavender Needs Rainfall You Supplement Action
Jan 1.9" 0" ❄️ Dormant
Feb 2.8" 0" ❄️ Dormant
Mar 1.3" 4.8" 0" ✅ Rainfall sufficient
Apr 1.3" 6.7" 0" ✅ Rainfall sufficient
May 1.3" 11.1" 0" ✅ Rainfall sufficient
Jun 1.3" 13" 0" ✅ Rainfall sufficient
Jul 1.3" 9.4" 0" ✅ Rainfall sufficient
Aug 1.3" 8.8" 0" ✅ Rainfall sufficient
Sep 1.3" 6.7" 0" ✅ Rainfall sufficient
Oct 1.3" 4.6" 0" ✅ Rainfall sufficient
Nov 1.3" 2.8" 0" ✅ Rainfall sufficient
Dec 1.7" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Gregg County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Lavender 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.

Lavender needs ~3,190 GDD — county provides 5,566 GDD Excellent fit

Lavender Planting Timeline — Gregg County, TX

Lavender Planting Calendar

Activity When Date Range
Transplant Outdoors March 16 Mar 16 – Mar 30
Harvest June 15 Jun 15 – Nov 16

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.3"/week · Natural rainfall sufficient

📅 Days to Maturity

90–200 days

🧪 Soil pH

Needs 6.5–8 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

253 days in Gregg County

Growing Tips for Lavender in Gregg County

Direct sow Lavender outdoors after March 09 in Gregg County when soil has warmed and frost danger has passed.

Sandy soil in Gregg County dries quickly — mulch Lavender with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 96°F in Gregg County, provide afternoon shade for Lavender and water deeply in the morning.

With 74" of annual rainfall in Gregg County, ensure good drainage for Lavender — excess moisture can promote root rot and fungal diseases.

General growing tips

Plant in well-drained, sandy soil. Avoid heavy mulching around the crown. Prune after flowering but do not cut into old wood. Lavender resents wet winter conditions.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Lavender in Gregg County, TX?

Gregg County is in Zone 8b with an average last frost of March 9. Plan your Lavender planting based on this frost date — see the calendar above for exact timing.

What planting zone is Gregg County, TX?

Gregg County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 9 and first fall frost is November 17.

🌱

Your Gregg County Garden Planner — Free

A 24-page printable planner built for Gregg 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.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Gregg 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.