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When to Plant Lavender in Jim Hogg County, TX

Jim Hogg County, Texas Zone 9b May

Your May game plan for Jim Hogg County, Texas

May is a pivotal month for Jim Hogg County, Texas gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost February 16
Avg. first frost December 5
Soil temp (4") 66°F
Watering Low
Pest pressure High
Daylight 13.3 hrs
  1. Bring in the lavender

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

June prep starts now
  • First harvests: lavender

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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.

Jim Hogg County, Texas is in USDA Zone 9b. The average last spring frost is February 16 and the first fall frost is December 5, giving you a growing season of approximately 292 days.

At an elevation of 4,270 feet, Jim Hogg County receives approximately 59.4 inches of rainfall annually with predominantly loam soil. Summer highs average 96°F, so Lavender may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lavender root diseases.

Jim Hogg County, TX (Zone 9b) Year-round
292 days
Last Spring Frost February 16
292 growing days
First Fall Frost December 5

Jim Hogg County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (51 days to spare)
Transplant: Feb 2 🍅 Harvest: May 4 – Oct 5
Recommended (50%) ✓ Fits season (40 days to spare)
Transplant: Feb 23 🍅 Harvest: May 25 – Oct 26
Safe Start (90%) ✓ Fits season (28 days to spare)
Transplant: Mar 24 🍅 Harvest: Jun 23 – Nov 24

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 Jim Hogg County

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

Soil pH

Your soil pH (6.2–7.3) overlaps with Lavender's range (6.5–8.0), though not a perfect match.

Soil Texture

The loam soil in Jim Hogg County is excellent for Lavender — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is low (1.9%). Add 2-3 inches of compost before planting 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
0.9″/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 1.3" 0" ❄️ Dormant
Feb 1.3" 2" 0" ✅ Rainfall sufficient
Mar 1.3" 3.4" 0" ✅ Rainfall sufficient
Apr 1.3" 6.6" 0" ✅ Rainfall sufficient
May 1.3" 9.2" 0" ✅ Rainfall sufficient
Jun 1.3" 10.7" 0" ✅ Rainfall sufficient
Jul 1.3" 6.6" 0" ✅ Rainfall sufficient
Aug 1.3" 6.9" 0" ✅ Rainfall sufficient
Sep 1.3" 5.8" 0" ✅ Rainfall sufficient
Oct 1.3" 3.6" 0" ✅ Rainfall sufficient
Nov 1.3" 2" 0" ✅ Rainfall sufficient
Dec 1.3" 1.4" 0" ✅ Rainfall sufficient

Water needs are for active growing months only (Feb–Dec in Jim Hogg 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 6,446 GDD Excellent fit

Lavender Planting Timeline — Jim Hogg County, TX

Lavender Planting Calendar

Activity When Date Range
Transplant Outdoors February 23 Feb 23 – Mar 9
Harvest May 25 May 25 – Oct 26

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

Month-by-Month Timeline

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

🗺️ USDA Zone

Zone 9b

📆 Growing Season

292 days in Jim Hogg County

Growing Tips for Lavender in Jim Hogg County

Direct sow Lavender outdoors after February 16 in Jim Hogg County when soil has warmed and frost danger has passed.

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

With 59" of annual rainfall in Jim Hogg 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 Jim Hogg County, TX?

Jim Hogg County is in Zone 9b with an average last frost of February 16. Plan your Lavender planting based on this frost date — see the calendar above for exact timing.

What planting zone is Jim Hogg County, TX?

Jim Hogg County, Texas is in USDA Hardiness Zone 9b. The average last spring frost is February 16 and first fall frost is December 5.

🌱

Your Jim Hogg County Garden Planner — Free

A 24-page printable planner built for Jim Hogg County (Zone 9b). 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 Jim Hogg 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.