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When to Plant Acorn Squash in Aransas County, TX

Aransas County, Texas Zone 9b May

What to do in May

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

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. It's harvest week for acorn squash

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

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

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Acorn squash is a small winter squash with dark green, ribbed skin and mildly sweet orange flesh. It is perfect for stuffing and roasting as individual servings.

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 Acorn Squash may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Acorn 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 (194 days to spare)
Start indoors: Dec 21 Transplant: Jan 25 🍅 Harvest: Apr 19 – May 24
Recommended (50%) ✓ Fits season (179 days to spare)
Start indoors: Jan 13 Transplant: Feb 17 🍅 Harvest: May 12 – Jun 16
Safe Start (90%) ✓ Fits season (159 days to spare)
Start indoors: Feb 11 Transplant: Mar 18 🍅 Harvest: Jun 10 – Jul 15

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 Acorn Squash's growing requirements.

Soil pH

Your soil pH (6.7–7.7) is more alkaline than Acorn Squash prefers (5.5–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

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

How to Plant Acorn Squash

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

Succession Planting Acorn Squash

4
successive plantings in your 305-day season

Sow every 9.1 weeks. Last sowing by Sep 03 to harvest before frost.

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 Acorn Squash

Acorn 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 Acorn 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.

Acorn 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.

Acorn Squash needs ~2,520 GDD — county provides 8,568 GDD Excellent fit

Acorn Squash Planting Timeline — Aransas County, TX

Acorn 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 12 May 12 – Jun 16

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

80–100 days

🧪 Soil pH

Needs 5.5–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 9b

📆 Growing Season

305 days in Aransas County

Growing Tips for Acorn Squash in Aransas County

Direct sow Acorn 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 Acorn Squash and water deeply in the morning.

Common pests for Acorn 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. Harvest when the ground spot turns orange and the skin is hard. Acorn squash has a shorter storage life than butternut, lasting about 2 months.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

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

Aransas County is in Zone 9b with an average last frost of February 10. Plan your Acorn 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.