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When to Plant Celtuce in Travis County, TX

Travis County, Texas Zone 9a May

Travis County, Texas gardeners: here's your May plan

Each item below is timed to Travis County, Texas's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 6
Avg. first frost November 23
Soil temp (4") 65°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Bring in the celtuce

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

Looking ahead to June
  • First harvests: celtuce

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Celtuce (stem lettuce) is a Chinese vegetable grown for its thick, crunchy stem rather than its leaves. The peeled stem has a mild, cucumber-like flavor.

Travis County, Texas is in USDA Zone 9a. The average last spring frost is March 6 and the first fall frost is November 23, giving you a growing season of approximately 262 days.

At an elevation of 3,682 feet, Travis County receives approximately 66.3 inches of rainfall annually with predominantly clay soil. Summer highs average 92°F, providing good warmth for Celtuce during the growing season. Clay soil retains moisture well for Celtuce, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celtuce root diseases.

Travis County, TX (Zone 9a) Long season
262 days
Last Spring Frost March 6
262 growing days
First Fall Frost November 23
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Travis County Soil Profile

Soil Type

Clay

Soil pH

6.8-8.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (156 days to spare)
Start indoors: Jan 29 Transplant: Feb 26 🍅 Harvest: Apr 30 – Jun 11
Recommended (50%) ✓ Fits season (157 days to spare)
Start indoors: Feb 6 Transplant: Mar 6 🍅 Harvest: May 8 – Jun 19
Safe Start (90%) ✓ Fits season (145 days to spare)
Start indoors: Mar 8 Transplant: Apr 5 🍅 Harvest: Jun 7 – Jul 19

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 Travis County

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

Soil pH

Your soil pH (6.8–8.4) is more alkaline than Celtuce prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Your clay soil in Travis County is workable for Celtuce. Add compost annually to improve structure.

Organic Matter

Organic matter is moderate (3.0%). Annual compost additions will help Celtuce.

How to Plant Celtuce

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 Celtuce

5
successive plantings in your 262-day season

Sow every 6.9 weeks. Last sowing by Aug 25 to harvest before frost.

For a dedicated fall crop, sow by Sep 28.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Celtuce

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

Month Celtuce Needs Rainfall You Supplement Action
Jan 1.6" 0" ❄️ Dormant
Feb 2" 0" ❄️ Dormant
Mar 3" 4.4" 0" ✅ Rainfall sufficient
Apr 3" 6.6" 0" ✅ Rainfall sufficient
May 3" 11.1" 0" ✅ Rainfall sufficient
Jun 3" 9.5" 0" ✅ Rainfall sufficient
Jul 3" 8.6" 0" ✅ Rainfall sufficient
Aug 3" 8.2" 0" ✅ Rainfall sufficient
Sep 3" 5.9" 0" ✅ Rainfall sufficient
Oct 3" 4.1" 0" ✅ Rainfall sufficient
Nov 3" 2.5" 0.5" 💧 Light watering
Dec 1.8" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Travis County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Celtuce 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.

Celtuce needs ~1,425 GDD — county provides 4,978 GDD Excellent fit

Celtuce Planting Timeline — Travis County, TX

Celtuce Planting Calendar

Activity When Date Range
Start Indoors February 6 Feb 6 – Feb 20
Transplant Outdoors March 6 Mar 6 – Mar 20
Direct Sow February 13 Feb 13 – Mar 6
Harvest May 8 May 8 – Jun 19
Fall Sowing September 28 Sep 28 – Oct 12

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.7"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 9a

📆 Growing Season

262 days in Travis County

Growing Tips for Celtuce in Travis County

Direct sow Celtuce outdoors after March 06 in Travis County when soil has warmed and frost danger has passed.

With Travis County's clay soil (37% clay), work in 3-4 inches of compost before planting Celtuce. Avoid tilling when soil is wet to prevent compaction.

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

General growing tips

Direct sow in spring or start indoors. Space 12 inches apart. Harvest when stems are about 1 inch in diameter. Peel the tough outer skin to reveal the tender center.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Celtuce in Travis County, TX?

Travis County is in Zone 9a with an average last frost of March 6. Plan your Celtuce planting based on this frost date — see the calendar above for exact timing.

What planting zone is Travis County, TX?

Travis County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is March 6 and first fall frost is November 23.

🌱

Your Travis County Garden Planner — Free

A 24-page printable planner built for Travis County (Zone 9a). 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 Travis 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.