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When to Plant Lettuce in Wharton County, TX

Lettuce is a fast-growing cool-season green available in leaf, romaine, butterhead, and crisphead types. It is the foundation of salads and one of the easiest crops to grow.

Wharton County, Texas is in USDA Zone 9a. The average last spring frost is February 17 and the first fall frost is December 6, giving you a growing season of approximately 292 days.

At an elevation of 207 feet, Wharton County receives approximately 64.8 inches of rainfall annually with predominantly loam soil. Summer highs average 98ยฐF, so Lettuce may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lettuce root diseases.

Wharton County, TX (Zone 9a) Year-round
292 days
Last Spring Frost February 17
292 growing days
First Fall Frost December 6

Wharton County Soil Profile

Soil Type

Loam

Soil pH

6.6-7.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (190 days to spare)
Start indoors: Jan 8 Transplant: Feb 5 🍅 Harvest: Mar 12 – May 21
Recommended (50%) ✓ Fits season (187 days to spare)
Start indoors: Jan 20 Transplant: Feb 17 🍅 Harvest: Mar 24 – Jun 2
Safe Start (90%) ✓ Fits season (179 days to spare)
Start indoors: Feb 12 Transplant: Mar 12 🍅 Harvest: Apr 16 – Jun 25

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 Wharton County

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

Soil pH

Your soil pH (6.6โ€“7.7) is more alkaline than Lettuce prefers (6.0โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Wharton County is excellent for Lettuce โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Lettuce.

How to Plant Lettuce

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Lettuce

11
successive plantings in your 292-day season

Sow every 3.4 weeks. Last sowing by Oct 07 to harvest before frost.

For a dedicated fall crop, sow by Oct 11.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Lettuce needs ~1,058 GDD — county provides 6,885 GDD Excellent fit

Lettuce Planting Timeline โ€” Wharton County, TX

Lettuce Planting Calendar

Activity When Date Range
Start Indoors January 20 Jan 20 โ€“ Feb 3
Transplant Outdoors February 17 Feb 17 โ€“ Mar 3
Direct Sow January 27 Jan 27 โ€“ Feb 17
Fall Sowing October 11 Oct 11 โ€“ Oct 25
Harvest March 24 Mar 24 โ€“ Jun 2

Plant 0.5" deep ยท 6" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors Direct Sow
February Start Indoors Transplant Outdoors Direct Sow
March Transplant Outdoors Harvest
April Harvest
May Harvest
June Harvest
July โ€”
August โ€”
September โ€”
October Fall Sowing
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Partial Shade (3-6 hours)

๐Ÿ’ง Water

0.7"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

30โ€“60 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 9a

๐Ÿ“† Growing Season

292 days in Wharton County

Growing Tips for Lettuce in Wharton County

Direct sow Lettuce outdoors after February 17 in Wharton County when soil has warmed and frost danger has passed.

Summer highs in Wharton County reach 98ยฐF โ€” grow Lettuce as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 293.0-day season in Wharton County allows multiple plantings of Lettuce. Sow every 15.0 days for continuous harvest.

Common pests for Lettuce in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

General growing tips

Sow seeds directly every 2 weeks for continuous harvest. Provide afternoon shade in warm weather to delay bolting. Harvest in the morning for crispest leaves.

Recommended Lettuce Varieties for Wharton County

Bolt-resistant varieties for warm summers โ€” grow as spring/fall crop

Jericho Muir Nevada New Red Fire

Companion Planting

Good Companions

Avoid Planting Near

  • Celery

Level Up Your Garden

๐ŸŒพ Save Your Own Lettuce Seeds
Life Cycle Annual
Pollination Self-Pollinating
How to Collect Let plants bolt and flower. Harvest seed heads when fluffy.
Storage Store airtight; viable 6 years at 35ยฐF, under 45% humidity.

Very easy to save. Let a few plants bolt each season.

Frequently Asked Questions

When should I plant Lettuce in Wharton County, TX?

Wharton County is in Zone 9a with an average last frost of February 17. Plan your Lettuce planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Wharton County, TX?

Wharton County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 17 and first fall frost is December 6.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Wharton County gardeners in Zone 9a 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 Wharton County, TX. Local conditions may vary. Last updated: April 2026.