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When to Plant Butternut Squash in Aransas County, TX

Aransas County, Texas Zone 9b May

Your May game plan for Aransas County, Texas

Here's what deserves your attention in Aransas County, Texas this month. Everything below is tailored to Zone 9b and timed around your local frost dates.

Avg. last frost February 10
Avg. first frost December 12
Soil temp (4") 78°F
Watering Low
Pest pressure High
Daylight 13.4 hrs
  1. Harvest butternut squash as they ripen

    If you can't use it all right away, check the food-preservation section of your planner.

Get ahead of June
  • First harvests: butternut squash

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Butternut squash is a popular winter squash with a long neck, small seed cavity, and sweet, nutty orange flesh. It stores exceptionally well for months.

Aransas County, Texas is in USDA Zone 9b. The average last spring frost is February 10 and the first fall frost is December 12, giving you a growing season of approximately 305 days.

At an elevation of 173 feet, Aransas County receives approximately 67.4 inches of rainfall annually with predominantly loam soil. Summer highs average 104°F, so Butternut Squash may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Butternut Squash root diseases.

Aransas County, TX (Zone 9b) Year-round
305 days
Last Spring Frost February 10
305 growing days
First Fall Frost December 12

Aransas County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (187 days to spare)
Start indoors: Dec 21 Transplant: Jan 25 🍅 Harvest: Apr 26 – May 31
Recommended (50%) ✓ Fits season (172 days to spare)
Start indoors: Jan 13 Transplant: Feb 17 🍅 Harvest: May 19 – Jun 23
Safe Start (90%) ✓ Fits season (152 days to spare)
Start indoors: Feb 11 Transplant: Mar 18 🍅 Harvest: Jun 17 – Jul 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 Aransas County

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

Soil pH

Your soil pH (6.7–7.7) is more alkaline than Butternut Squash prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Aransas County is excellent for Butternut Squash — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Butternut Squash.

How to Plant Butternut Squash

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

Plant Water Budget

Plant needs
1.1″/week
Rainfall provides
0.9″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 476 gal / 100 sq ft

Monthly Watering Guide for Butternut Squash

Butternut Squash needs approximately 1.1 inches of water per week (4.8" per month). Here's how your county's rainfall compares month by month.

Month Butternut Squash Needs Rainfall You Supplement Action
Jan 1.9" 0" ❄️ Dormant
Feb 4.8" 2.4" 2.4" 🚿 Regular watering
Mar 4.8" 4.3" 0.5" 💧 Light watering
Apr 4.8" 6.7" 0" ✅ Rainfall sufficient
May 4.8" 10.1" 0" ✅ Rainfall sufficient
Jun 4.8" 12" 0" ✅ Rainfall sufficient
Jul 4.8" 8.2" 0" ✅ Rainfall sufficient
Aug 4.8" 8.7" 0" ✅ Rainfall sufficient
Sep 4.8" 5.4" 0" ✅ Rainfall sufficient
Oct 4.8" 3.9" 0.9" 💧 Light watering
Nov 4.8" 2.2" 2.6" 🚿 Regular watering
Dec 4.8" 1.7" 3.1" 🚿 Regular watering

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

Butternut 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.

Butternut Squash needs ~2,730 GDD — county provides 8,568 GDD Excellent fit

Butternut Squash Planting Timeline — Aransas County, TX

Butternut Squash 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 10 Feb 10 – Mar 3
Harvest May 19 May 19 – Jun 23

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.1"/week · Only during dry spells

📅 Days to Maturity

85–110 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 9b

📆 Growing Season

305 days in Aransas County

Growing Tips for Butternut Squash in Aransas County

Direct sow Butternut Squash outdoors after February 10 in Aransas County when soil has warmed and frost danger has passed.

With summer highs reaching 104°F in Aransas County, provide afternoon shade for Butternut Squash and water deeply in the morning.

Common pests for Butternut 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

Start seeds indoors 3 weeks early or direct sow after frost. Allow 6-8 feet for sprawling vines. Harvest when the skin is hard and uniformly tan. Cure in the sun for 10 days.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Butternut Squash in Aransas County, TX?

Aransas County is in Zone 9b with an average last frost of February 10. Plan your Butternut Squash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Aransas County, TX?

Aransas County, Texas is in USDA Hardiness Zone 9b. The average last spring frost is February 10 and first fall frost is December 12.

🌱

Your Aransas County Garden Planner — Free

A 24-page printable planner built for Aransas County (Zone 9b). 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 Aransas 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.