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When to Plant Acorn Squash in Atascosa County, TX

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.

Atascosa County, Texas is in USDA Zone 8b. The average last spring frost is February 26 and the first fall frost is November 29, giving you a growing season of approximately 276 days.

At an elevation of 1,942 feet, Atascosa County receives approximately 51.7 inches of rainfall annually with predominantly loam soil. Summer highs average 91ยฐF, providing good warmth for Acorn Squash during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Acorn Squash root diseases.

Atascosa County, TX (Zone 8b) Year-round
276 days
Last Spring Frost February 26
276 growing days
First Fall Frost November 29

Atascosa County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (151 days to spare)
Start indoors: Jan 16 Transplant: Feb 27 🍅 Harvest: May 22 – Jun 26
Recommended (50%) ✓ Fits season (143 days to spare)
Start indoors: Jan 29 Transplant: Mar 12 🍅 Harvest: Jun 4 – Jul 9
Safe Start (90%) ✓ Fits season (136 days to spare)
Start indoors: Feb 22 Transplant: Apr 5 🍅 Harvest: Jun 28 – Aug 2

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 Atascosa County

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

Soil pH

Your soil pH (6.8โ€“7.7) is more alkaline than Acorn Squash prefers (5.5โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Acorn Squash.

Organic Matter

Organic matter is moderate (2.1%). 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 276-day season

Sow every 9.1 weeks. Last sowing by Aug 21 to harvest before frost.

Plant Water Budget

Plant needs
1.1″/week
Rainfall provides
0.8″/week
You supply
0.7″/week
Watering frequency 1-2 times/week
Season total 1,593 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 โ€” 1.5" 0" โ„๏ธ Dormant
Feb 4.8" 1.6" 3.2" ๐Ÿšฟ Regular watering
Mar 4.8" 3.5" 1.3" ๐Ÿ’ง Light watering
Apr 4.8" 4.8" 0" โœ… Rainfall sufficient
May 4.8" 7.6" 0" โœ… Rainfall sufficient
Jun 4.8" 7.4" 0" โœ… Rainfall sufficient
Jul 4.8" 7.4" 0" โœ… Rainfall sufficient
Aug 4.8" 6.6" 0" โœ… Rainfall sufficient
Sep 4.8" 4.9" 0" โœ… Rainfall sufficient
Oct 4.8" 3.1" 1.7" ๐Ÿ’ง Light watering
Nov 4.8" 2" 2.8" ๐Ÿšฟ Regular watering
Dec โ€” 1.4" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Febโ€“Nov in Atascosa County). Supplement amounts are based on average rainfall โ€” 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" 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.

Acorn Squash needs ~1,642 GDD — county provides 5,055 GDD Excellent fit

Acorn Squash Planting Timeline โ€” Atascosa County, TX

Acorn Squash Planting Calendar

Activity When Date Range
Start Indoors January 29 Jan 29 โ€“ Feb 12
Transplant Outdoors March 12 Mar 12 โ€“ Mar 26
Direct Sow March 5 Mar 5 โ€“ Mar 26
Harvest June 4 Jun 4 โ€“ Jul 9

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1.1"/week ยท 1-2 times/week

๐Ÿ“… Days to Maturity

80โ€“100 days

๐Ÿงช Soil pH

Needs 5.5โ€“7 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 8b

๐Ÿ“† Growing Season

276 days in Atascosa County

Growing Tips for Acorn Squash in Atascosa County

Direct sow Acorn Squash outdoors after February 26 in Atascosa County when soil has warmed and frost danger has passed.

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 Atascosa County, TX?

Atascosa County is in Zone 8b with an average last frost of February 26. Plan your Acorn Squash planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Atascosa County, TX?

Atascosa County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is February 26 and first fall frost is November 29.

๐ŸŒฑ

Plan Your Garden with Confidence

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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 Atascosa County, TX. Local conditions may vary. Last updated: April 2026.