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When to Plant Endive in Winkler 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.

Winkler County, Texas is in USDA Zone 7b. The average last spring frost is March 25 and the first fall frost is November 10, giving you a growing season of approximately 230 days.

At an elevation of 1,153 feet, Winkler County receives approximately 51.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 91ยฐF, providing good warmth for Endive during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Endive will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Endive root diseases.

Winkler County, TX (Zone 7b) Long season
230 days
Last Spring Frost March 25
230 growing days
First Fall Frost November 10

Winkler County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.5-8.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (142 days to spare)
Start indoors: Feb 8 Transplant: Mar 15 🍅 Harvest: May 3 – Jun 7
Recommended (50%) ✓ Fits season (146 days to spare)
Start indoors: Feb 18 Transplant: Mar 25 🍅 Harvest: May 13 – Jun 17
Safe Start (90%) ✓ Fits season (139 days to spare)
Start indoors: Mar 14 Transplant: Apr 18 🍅 Harvest: Jun 6 – Jul 11

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 Winkler County

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

Soil pH

Your soil pH (7.5โ€“8.2) is more alkaline than Endive prefers (5.5โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Endive.

Organic Matter

Organic matter is low (1.0%). Add 2-3 inches of compost before planting Endive.

How to Plant Endive

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 Endive

6
successive plantings in your 230-day season

Sow every 5.1 weeks. Last sowing by Sep 06 to harvest before frost.

For a dedicated fall crop, sow by Sep 01.

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 8/10 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€” 3.6" 0" โ„๏ธ Dormant
Feb โ€” 3.4" 0" โ„๏ธ Dormant
Mar 3" 3.3" 0" โœ… Rainfall sufficient
Apr 3" 1.5" 1.5" ๐Ÿšฟ Regular watering
May 3" 1" 2" ๐Ÿšฟ Regular watering
Jun 3" 2" 1" ๐Ÿ’ง Light watering
Jul 3" 8.1" 0" โœ… Rainfall sufficient
Aug 3" 10.2" 0" โœ… Rainfall sufficient
Sep 3" 6.7" 0" โœ… Rainfall sufficient
Oct 3" 5" 0" โœ… Rainfall sufficient
Nov 3" 3.3" 0" โœ… Rainfall sufficient
Dec โ€” 3.2" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Winkler 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 ~1,004 GDD — county provides 4,197 GDD Excellent fit

Endive Planting Timeline โ€” Winkler County, TX

Endive Planting Calendar

Activity When Date Range
Start Indoors February 18 Feb 18 โ€“ Mar 4
Transplant Outdoors March 25 Mar 25 โ€“ Apr 8
Direct Sow March 11 Mar 11 โ€“ Apr 1
Harvest May 13 May 13 โ€“ Jun 17
Fall Sowing September 1 Sep 1 โ€“ Sep 15

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

Month-by-Month Timeline

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

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

230 days in Winkler County

Growing Tips for Endive in Winkler County

Direct sow Endive outdoors after March 25 in Winkler County when soil has warmed and frost danger has passed.

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

Your generous 230.0-day season in Winkler 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 Winkler County, TX?

Winkler County is in Zone 7b with an average last frost of March 25. Plan your Endive planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Winkler County, TX?

Winkler County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 25 and first fall frost is November 10.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Winkler County gardeners in Zone 7b 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 Winkler County, TX. Local conditions may vary. Last updated: April 2026.