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When to Plant Crookneck Squash in Upton County, TX

Upton County, Texas Zone 8b May

May in Upton County, Texas — your action list

Here's what deserves your attention in Upton County, Texas this month. Everything below is tailored to Zone 8b and timed around your local frost dates.

Avg. last frost March 20
Avg. first frost November 12
Soil temp (4") 68°F
Watering High
Pest pressure Moderate
Daylight 13.6 hrs
  1. Collect crookneck squash at their peak

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

June will be here before you know it — start on
  • First harvests: crookneck squash

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Yellow crookneck squash is a summer squash with a curved neck and bumpy, bright yellow skin. It has a buttery flavor and is best harvested young when 4-6 inches long.

Upton County, Texas is in USDA Zone 8b. The average last spring frost is March 20 and the first fall frost is November 12, giving you a growing season of approximately 237 days.

At an elevation of 1,734 feet, Upton County receives approximately 50.9 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96°F, so Crookneck Squash may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Crookneck Squash will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Crookneck Squash root diseases.

Upton County, TX (Zone 8b) Long season
237 days
Last Spring Frost March 20
237 growing days
First Fall Frost November 12
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Upton County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.8-8.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (147 days to spare)
Start indoors: Feb 10 Transplant: Mar 24 🍅 Harvest: May 12 – Jun 9
Recommended (50%) ✓ Fits season (146 days to spare)
Start indoors: Feb 20 Transplant: Apr 3 🍅 Harvest: May 22 – Jun 19
Safe Start (90%) ✓ Fits season (139 days to spare)
Start indoors: Mar 16 Transplant: Apr 27 🍅 Harvest: Jun 15 – Jul 13

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 Upton County

How your county's soil matches Crookneck Squash's growing requirements.

Soil pH

Your soil pH (7.8–8.3) is more alkaline than Crookneck Squash prefers (6.0–7.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

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

How to Plant Crookneck Squash

1"
Planting Depth
30"
Between Plants
42"
Between Rows

Succession Planting Crookneck Squash

6
successive plantings in your 237-day season

Sow every 5.1 weeks. Last sowing by Sep 13 to harvest before frost.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 248 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Crookneck Squash

Crookneck Squash needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Crookneck Squash Needs Rainfall You Supplement Action
Jan 3.9" 0" ❄️ Dormant
Feb 2.5" 0" ❄️ Dormant
Mar 4.3" 3.2" 1.1" 💧 Light watering
Apr 4.3" 2" 2.3" 🚿 Regular watering
May 4.3" 1.3" 3" 🚿 Regular watering
Jun 4.3" 1.7" 2.6" 🚿 Regular watering
Jul 4.3" 8.4" 0" ✅ Rainfall sufficient
Aug 4.3" 9.8" 0" ✅ Rainfall sufficient
Sep 4.3" 7.7" 0" ✅ Rainfall sufficient
Oct 4.3" 4.4" 0" ✅ Rainfall sufficient
Nov 4.3" 2.7" 1.6" 💧 Light watering
Dec 3.4" 0" ❄️ Dormant

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

Crookneck Squash 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.

Crookneck Squash needs ~1,155 GDD — county provides 5,214 GDD Excellent fit

Crookneck Squash Planting Timeline — Upton County, TX

Crookneck Squash Planting Calendar

Activity When Date Range
Start Indoors February 20 Feb 20 – Mar 6
Transplant Outdoors April 3 Apr 3 – Apr 17
Direct Sow March 27 Mar 27 – Apr 17
Harvest May 22 May 22 – Jun 19

Plant 1" deep · 30" apart · Rows 42" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

45–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 8b

📆 Growing Season

237 days in Upton County

Growing Tips for Crookneck Squash in Upton County

Direct sow Crookneck Squash outdoors after March 20 in Upton County when soil has warmed and frost danger has passed.

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

With summer highs reaching 96°F in Upton County, provide afternoon shade for Crookneck Squash and water deeply in the morning.

Your generous 237.0-day season in Upton County allows multiple plantings of Crookneck Squash. Sow every 22.0 days for continuous harvest.

Common pests for Crookneck Squash in this region include squash vine borer and cucumber beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow after last frost on mounds. Pick frequently while small for tender texture. Skin becomes tough and warty on larger fruits. Very productive in warm weather.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Crookneck Squash in Upton County, TX?

Upton County is in Zone 8b with an average last frost of March 20. Plan your Crookneck Squash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Upton County, TX?

Upton County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 20 and first fall frost is November 12.

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Your Upton County Garden Planner — Free

A 24-page printable planner built for Upton 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 Upton 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.