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When to Plant Lettuce in Val Verde County, TX

Val Verde County, Texas Zone 8b May

What to do in May

We've pulled the most time-sensitive tasks for Val Verde County, Texas this May and put them front and centre. Tackle them in order.

Avg. last frost February 17
Avg. first frost December 7
Soil temp (4") 62°F
Watering Critical
Pest pressure High
Daylight 13.5 hrs
  1. Harvest lettuce as they ripen

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

Looking ahead to June
  • First harvests: lettuce

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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.

Val Verde County, Texas is in USDA Zone 8b. The average last spring frost is February 17 and the first fall frost is December 7, giving you a growing season of approximately 293 days.

At an elevation of 3,979 feet, Val Verde County receives approximately 53.1 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 98°F, so Lettuce may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — 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.

Val Verde County, TX (Zone 8b) Year-round
293 days
Last Spring Frost February 17
293 growing days
First Fall Frost December 7
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Val Verde County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.7-8.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (187 days to spare)
Start indoors: Jan 8 Transplant: Feb 12 🍅 Harvest: Mar 19 – May 28
Recommended (50%) ✓ Fits season (188 days to spare)
Start indoors: Jan 13 Transplant: Feb 17 🍅 Harvest: Mar 24 – Jun 2
Safe Start (90%) ✓ Fits season (182 days to spare)
Start indoors: Feb 2 Transplant: Mar 9 🍅 Harvest: Apr 13 – Jun 22

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 Val Verde County

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

Soil pH

Your soil pH (7.7–8.1) is more alkaline than Lettuce prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Val Verde 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 (0.9%). 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 10 weeks before your first frost date for a fall harvest.

Succession Planting Lettuce

11
successive plantings in your 293-day season

Sow every 3.4 weeks. Last sowing by Oct 08 to harvest before frost.

For a dedicated fall crop, sow by Sep 28.

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
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

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 3.8" 0" ❄️ Dormant
Feb 3" 3.1" 0" ✅ Rainfall sufficient
Mar 3" 2.8" 0.2" 💧 Light watering
Apr 3" 1.7" 1.3" 💧 Light watering
May 3" 1.1" 1.9" 🚿 Regular watering
Jun 3" 1.7" 1.3" 💧 Light watering
Jul 3" 9.6" 0" ✅ Rainfall sufficient
Aug 3" 11.5" 0" ✅ Rainfall sufficient
Sep 3" 6.2" 0" ✅ Rainfall sufficient
Oct 3" 4.3" 0" ✅ Rainfall sufficient
Nov 3" 3.3" 0" ✅ Rainfall sufficient
Dec 3" 4" 0" ✅ Rainfall sufficient

Water needs are for active growing months only (Feb–Dec in Val Verde County). Supplement amounts are based on average rainfall — 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" — 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.

Lettuce needs ~1,058 GDD — county provides 6,909 GDD Excellent fit

Lettuce Planting Timeline — Val Verde County, TX

Lettuce Planting Calendar

Activity When Date Range
Start Indoors January 13 Jan 13 – Jan 27
Transplant Outdoors February 17 Feb 17 – Mar 3
Direct Sow February 3 Feb 3 – Feb 24
Harvest March 24 Mar 24 – Jun 2
Fall Sowing September 28 Sep 28 – Oct 12

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

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.7"/week · Natural rainfall sufficient

📅 Days to Maturity

30–60 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 8b

📆 Growing Season

293 days in Val Verde County

Growing Tips for Lettuce in Val Verde County

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

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

Summer highs in Val Verde County reach 98°F — grow Lettuce as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 294.0-day season in Val Verde 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 Val Verde County

Bolt-resistant varieties for warm summers — 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 →

🌾 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 35°F, under 45% humidity.

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

Frequently Asked Questions

When should I plant Lettuce in Val Verde County, TX?

Val Verde County is in Zone 8b with an average last frost of February 17. Plan your Lettuce planting based on this frost date — see the calendar above for exact timing.

What planting zone is Val Verde County, TX?

Val Verde County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is February 17 and first fall frost is December 7.

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Your Val Verde County Garden Planner — Free

A 24-page printable planner built for Val Verde 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.

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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 Val Verde 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.