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When to Plant Lettuce in Matagorda 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.

Matagorda County, Texas is in USDA Zone 9a. The average last spring frost is February 19 and the first fall frost is December 6, giving you a growing season of approximately 290 days.

At an elevation of 161 feet, Matagorda County receives approximately 57.1 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 95ยฐF, so Lettuce may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Lettuce will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lettuce root diseases.

Matagorda County, TX (Zone 9a) Year-round
290 days
Last Spring Frost February 19
290 growing days
First Fall Frost December 6

Matagorda County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.4-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (190 days to spare)
Start indoors: Jan 10 Transplant: Feb 7 🍅 Harvest: Mar 14 – May 23
Recommended (50%) ✓ Fits season (185 days to spare)
Start indoors: Jan 22 Transplant: Feb 19 🍅 Harvest: Mar 26 – Jun 4
Safe Start (90%) ✓ Fits season (176 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 Matagorda County

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

Soil pH

Your soil pH (5.4โ€“6.5) is more acidic than Lettuce prefers (6.0โ€“7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is low (1.9%). Add 2-3 inches of compost before planting 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 290-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
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Lettuce

Lettuce needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.

Month Lettuce Needs Rainfall You Supplement Action
Jan โ€” 1.4" 0" โ„๏ธ Dormant
Feb 3" 1.9" 1.1" ๐Ÿ’ง Light watering
Mar 3" 3.4" 0" โœ… Rainfall sufficient
Apr 3" 6.2" 0" โœ… Rainfall sufficient
May 3" 7.9" 0" โœ… Rainfall sufficient
Jun 3" 9.4" 0" โœ… Rainfall sufficient
Jul 3" 7.8" 0" โœ… Rainfall sufficient
Aug 3" 6.9" 0" โœ… Rainfall sufficient
Sep 3" 5.3" 0" โœ… Rainfall sufficient
Oct 3" 3.7" 0" โœ… Rainfall sufficient
Nov 3" 1.8" 1.2" ๐Ÿ’ง Light watering
Dec 3" 1.4" 1.6" ๐Ÿšฟ Regular watering

Water needs are for active growing months only (Febโ€“Dec in Matagorda County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Lettuce 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.

Lettuce needs ~956 GDD — county provides 6,183 GDD Excellent fit

Lettuce Planting Timeline โ€” Matagorda County, TX

Lettuce Planting Calendar

Activity When Date Range
Start Indoors January 22 Jan 22 โ€“ Feb 5
Transplant Outdoors February 19 Feb 19 โ€“ Mar 5
Direct Sow January 29 Jan 29 โ€“ Feb 19
Harvest March 26 Mar 26 โ€“ Jun 4
Fall Sowing October 11 Oct 11 โ€“ Oct 25

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_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 9a

๐Ÿ“† Growing Season

290 days in Matagorda County

Growing Tips for Lettuce in Matagorda County

Direct sow Lettuce outdoors after February 19 in Matagorda County when soil has warmed and frost danger has passed.

Sandy soil in Matagorda County dries quickly โ€” mulch Lettuce with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Summer highs in Matagorda County reach 95ยฐF โ€” grow Lettuce as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 291.0-day season in Matagorda 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 Matagorda 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

Check more plant combinations with our Companion Planting Checker →

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 Matagorda County, TX?

Matagorda County is in Zone 9a with an average last frost of February 19. Plan your Lettuce planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Matagorda County, TX?

Matagorda County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 19 and first fall frost is December 6.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Matagorda 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 Matagorda County, TX. Local conditions may vary. Last updated: April 2026.