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When to Plant Endive in McMullen County, TX

Endive is a leafy green with a slightly bitter flavor, available in curly (frisee) and broad-leaved (escarole) types. It adds texture and complexity to salads.

McMullen County, Texas is in USDA Zone 9a. The average last spring frost is February 20 and the first fall frost is December 1, giving you a growing season of approximately 284 days.

At an elevation of 3,741 feet, McMullen County receives approximately 58 inches of rainfall annually with predominantly loam soil. Summer highs average 103ยฐF, so Endive may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Endive root diseases.

McMullen County, TX (Zone 9a) Year-round
284 days
Last Spring Frost February 20
284 growing days
First Fall Frost December 1

McMullen County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (210 days to spare)
Start indoors: Jan 6 Transplant: Feb 3 🍅 Harvest: Mar 24 – Apr 28
Recommended (50%) ✓ Fits season (200 days to spare)
Start indoors: Jan 23 Transplant: Feb 20 🍅 Harvest: Apr 10 – May 15
Safe Start (90%) ✓ Fits season (193 days to spare)
Start indoors: Feb 17 Transplant: Mar 17 🍅 Harvest: May 5 – Jun 9

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 McMullen County

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

Soil pH

Your soil pH (6.8โ€“7.2) overlaps with Endive's range (5.5โ€“7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Endive.

How to Plant Endive

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 Endive

7
successive plantings in your 284-day season

Sow every 5.1 weeks. Last sowing by Sep 27 to harvest before frost.

For a dedicated fall crop, sow by Oct 06.

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
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Monthly Watering Guide for Endive

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

Month Endive Needs Rainfall You Supplement Action
Jan โ€” 1.6" 0" โ„๏ธ Dormant
Feb 3" 2" 1" ๐Ÿ’ง Light watering
Mar 3" 3.7" 0" โœ… Rainfall sufficient
Apr 3" 6.4" 0" โœ… Rainfall sufficient
May 3" 9.4" 0" โœ… Rainfall sufficient
Jun 3" 9.8" 0" โœ… Rainfall sufficient
Jul 3" 7.3" 0" โœ… Rainfall sufficient
Aug 3" 6.5" 0" โœ… Rainfall sufficient
Sep 3" 4.6" 0" โœ… Rainfall sufficient
Oct 3" 3.5" 0" โœ… Rainfall sufficient
Nov 3" 1.7" 1.3" ๐Ÿ’ง Light watering
Dec 3" 1.3" 1.7" ๐Ÿšฟ Regular watering

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

Endive 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.

Endive needs ~1,499 GDD — county provides 7,766 GDD Excellent fit

Endive Planting Timeline โ€” McMullen County, TX

Endive Planting Calendar

Activity When Date Range
Start Indoors January 23 Jan 23 โ€“ Feb 6
Transplant Outdoors February 20 Feb 20 โ€“ Mar 6
Direct Sow January 30 Jan 30 โ€“ Feb 20
Harvest April 10 Apr 10 โ€“ May 15
Fall Sowing October 6 Oct 6 โ€“ Oct 20

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
April Harvest
May Harvest
June โ€”
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

45โ€“65 days

๐Ÿงช Soil pH

Needs 5.5โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 9a

๐Ÿ“† Growing Season

284 days in McMullen County

Growing Tips for Endive in McMullen County

Direct sow Endive outdoors after February 20 in McMullen County when soil has warmed and frost danger has passed.

With summer highs reaching 103ยฐF in McMullen County, provide afternoon shade for Endive and water deeply in the morning.

Your generous 285.0-day season in McMullen County allows multiple plantings of Endive. Sow every 22.0 days for continuous harvest.

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

General growing tips

Sow seeds directly in spring or fall. Blanch heads by tying outer leaves together 2-3 weeks before harvest to reduce bitterness. Keep soil evenly moist.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Endive in McMullen County, TX?

McMullen County is in Zone 9a with an average last frost of February 20. Plan your Endive planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is McMullen County, TX?

McMullen County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 20 and first fall frost is December 1.

๐ŸŒฑ

Plan Your Garden with Confidence

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