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When to Plant Acorn Squash in Hill 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.

Hill County, Texas is in USDA Zone 8a. The average last spring frost is March 12 and the first fall frost is November 19, giving you a growing season of approximately 252 days.

At an elevation of 2,597 feet, Hill County receives approximately 54.7 inches of rainfall annually with predominantly clay soil. Summer highs average 93ยฐF, providing good warmth for Acorn Squash during the growing season. Clay soil retains moisture well for Acorn Squash, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Acorn Squash root diseases.

Hill County, TX (Zone 8a) Long season
252 days
Last Spring Frost March 12
252 growing days
First Fall Frost November 19

Hill County Soil Profile

Soil Type

Clay

Soil pH

7.3-7.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (118 days to spare)
Start indoors: Feb 5 Transplant: Mar 19 🍅 Harvest: Jun 11 – Jul 16
Recommended (50%) ✓ Fits season (119 days to spare)
Start indoors: Feb 12 Transplant: Mar 26 🍅 Harvest: Jun 18 – Jul 23
Safe Start (90%) ✓ Fits season (106 days to spare)
Start indoors: Mar 10 Transplant: Apr 21 🍅 Harvest: Jul 14 – Aug 18

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 Hill County

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

Soil pH

Your soil pH (7.3โ€“7.7) is more alkaline than Acorn Squash prefers (5.5โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Your clay soil in Hill County is workable for Acorn Squash. Add compost annually to improve structure.

Organic Matter

Organic matter is moderate (2.9%). 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

3
successive plantings in your 252-day season

Sow every 9.1 weeks. Last sowing by Aug 11 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 507 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

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 โ€” 1.5" 0" โ„๏ธ Dormant
Mar 4.8" 3.6" 1.2" ๐Ÿ’ง Light watering
Apr 4.8" 5.9" 0" โœ… Rainfall sufficient
May 4.8" 6.7" 0" โœ… Rainfall sufficient
Jun 4.8" 9.7" 0" โœ… Rainfall sufficient
Jul 4.8" 7.3" 0" โœ… Rainfall sufficient
Aug 4.8" 7" 0" โœ… Rainfall sufficient
Sep 4.8" 4.8" 0" โœ… Rainfall sufficient
Oct 4.8" 3.5" 1.3" 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 (Marโ€“Nov in Hill 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 ~1,778 GDD — county provides 4,977 GDD Excellent fit

Acorn Squash Planting Timeline โ€” Hill County, TX

Acorn Squash Planting Calendar

Activity When Date Range
Start Indoors February 12 Feb 12 โ€“ Feb 26
Transplant Outdoors March 26 Mar 26 โ€“ Apr 9
Direct Sow March 19 Mar 19 โ€“ Apr 9
Harvest June 18 Jun 18 โ€“ Jul 23

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

Month-by-Month Timeline

MonthActivities
January โ€”
February Start Indoors
March Transplant Outdoors Direct Sow
April Transplant Outdoors Direct Sow
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 Only during dry spells

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 8a

๐Ÿ“† Growing Season

252 days in Hill County

Growing Tips for Acorn Squash in Hill County

Direct sow Acorn Squash outdoors after March 12 in Hill County when soil has warmed and frost danger has passed.

With Hill County's clay soil (36% clay), work in 3-4 inches of compost before planting Acorn Squash. Avoid tilling when soil is wet to prevent compaction.

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 Hill County, TX?

Hill County is in Zone 8a with an average last frost of March 12. Plan your Acorn Squash planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Hill County, TX?

Hill County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 12 and first fall frost is November 19.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Hill County gardeners in Zone 8a 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 Hill County, TX. Local conditions may vary. Last updated: April 2026.