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When to Plant Lavender in Terry County, TX

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.

Terry County, Texas is in USDA Zone 7a. The average last spring frost is April 6 and the first fall frost is November 7, giving you a growing season of approximately 215 days.

At an elevation of 4,751 feet, Terry County receives approximately 48.5 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 99ยฐF, so Lavender may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Lavender will need more frequent watering and organic matter to retain nutrients.

Terry County, TX (Zone 7a) Long season
215 days
Last Spring Frost April 6
215 growing days
First Fall Frost November 7

Terry County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.7-8.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Apr 2 🍅 Harvest: Jul 2 – Nov 12
Recommended (50%) ✗ May not fit
Transplant: Apr 13 🍅 Harvest: Jul 13 – Nov 23
Safe Start (90%) ✗ May not fit
Transplant: Apr 28 🍅 Harvest: Jul 28 – Dec 8

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 Terry County

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

Soil pH

Your soil pH (7.7โ€“8.4) is more alkaline than Lavender prefers (6.5โ€“8.0). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Terry County warms quickly in spring but drains fast. Lavender 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 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
1.0″/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 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 โ€” 3.8" 0" โ„๏ธ Dormant
Feb โ€” 3" 0" โ„๏ธ Dormant
Mar โ€” 2.5" 0" โ„๏ธ Dormant
Apr 1.3" 1.9" 0" โœ… Rainfall sufficient
May 1.3" 1.1" 0.2" ๐Ÿ’ง Light watering
Jun 1.3" 1.7" 0" โœ… Rainfall sufficient
Jul 1.3" 7.6" 0" โœ… Rainfall sufficient
Aug 1.3" 9.5" 0" โœ… Rainfall sufficient
Sep 1.3" 7" 0" โœ… Rainfall sufficient
Oct 1.3" 4.3" 0" โœ… Rainfall sufficient
Nov 1.3" 3.1" 0" โœ… Rainfall sufficient
Dec โ€” 3" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Nov in Terry County). Supplement amounts are based on average rainfall โ€” 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" 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.

Lavender needs ~3,516 GDD — county provides 5,213 GDD Excellent fit

Lavender Planting Timeline โ€” Terry County, TX

Lavender Planting Calendar

Activity When Date Range
Transplant Outdoors April 13 Apr 13 โ€“ Apr 27
Harvest July 13 Jul 13 โ€“ Nov 23

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 โ€”
June โ€”
July Harvest
August Harvest
September Harvest
October Harvest
November Harvest
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.3"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

90โ€“200 days

๐Ÿงช Soil pH

Needs 6.5โ€“8 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 7a

๐Ÿ“† Growing Season

215 days in Terry County

Growing Tips for Lavender in Terry County

Direct sow Lavender outdoors after April 06 in Terry County when soil has warmed and frost danger has passed.

Sandy soil in Terry County dries quickly โ€” 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 99ยฐF in Terry County, provide afternoon shade for Lavender and water deeply in the morning.

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 Terry County, TX?

Terry County is in Zone 7a with an average last frost of April 6. Plan your Lavender planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Terry County, TX?

Terry County, Texas is in USDA Hardiness Zone 7a. The average last spring frost is April 6 and first fall frost is November 7.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Terry County gardeners in Zone 7a 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 Terry County, TX. Local conditions may vary. Last updated: April 2026.