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When to Plant Acorn Squash in Bastrop County, TX

Bastrop County, Texas Zone 9a May

May in Bastrop County, Texas — your action list

Each item below is timed to Bastrop County, Texas's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost February 27
Avg. first frost December 1
Soil temp (4") 64°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Collect acorn squash at their peak

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

Looking ahead to June
  • 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.

Bastrop County, Texas is in USDA Zone 9a. The average last spring frost is February 27 and the first fall frost is December 1, giving you a growing season of approximately 277 days.

At an elevation of 3,716 feet, Bastrop County receives approximately 57 inches of rainfall annually with predominantly clay soil. Summer highs average 91°F, 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.

Bastrop County, TX (Zone 9a) Year-round
277 days
Last Spring Frost February 27
277 growing days
First Fall Frost December 1
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Bastrop County Soil Profile

Soil Type

Clay

Soil pH

7.2-7.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (153 days to spare)
Start indoors: Jan 16 Transplant: Feb 20 🍅 Harvest: May 15 – Jun 19
Recommended (50%) ✓ Fits season (151 days to spare)
Start indoors: Jan 30 Transplant: Mar 6 🍅 Harvest: May 29 – Jul 3
Safe Start (90%) ✓ Fits season (140 days to spare)
Start indoors: Feb 22 Transplant: Mar 29 🍅 Harvest: Jun 21 – Jul 26

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 Bastrop County

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

Soil pH

Your soil pH (7.2–7.9) is more alkaline than Acorn Squash prefers (5.5–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Heavy clay soil (47% clay) in Bastrop County compacts easily and drains slowly. Amend with compost and avoid working soil when wet.

Organic Matter

Organic matter is moderate (3.0%). 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 277-day season

Sow every 9.1 weeks. Last sowing by Aug 23 to harvest before frost.

Plant Water Budget

Plant needs
1.1″/week
Rainfall provides
0.9″/week
You supply
0.3″/week
Watering frequency Only during dry spells
Season total 709 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — 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 1.5" 0" ❄️ Dormant
Feb 4.8" 2.1" 2.7" 🚿 Regular watering
Mar 4.8" 4.1" 0.7" 💧 Light watering
Apr 4.8" 6.1" 0" ✅ Rainfall sufficient
May 4.8" 8.8" 0" ✅ Rainfall sufficient
Jun 4.8" 9.4" 0" ✅ Rainfall sufficient
Jul 4.8" 6.7" 0" ✅ Rainfall sufficient
Aug 4.8" 5.8" 0" ✅ Rainfall sufficient
Sep 4.8" 5.6" 0" ✅ Rainfall sufficient
Oct 4.8" 3.5" 1.3" 💧 Light watering
Nov 4.8" 1.9" 2.9" 🚿 Regular watering
Dec 4.8" 1.5" 3.3" 🚿 Regular watering

Water needs are for active growing months only (Feb–Dec in Bastrop 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 ~1,642 GDD — county provides 5,073 GDD Excellent fit

Acorn Squash Planting Timeline — Bastrop County, TX

Acorn Squash Planting Calendar

Activity When Date Range
Start Indoors January 30 Jan 30 – Feb 13
Transplant Outdoors March 6 Mar 6 – Mar 20
Direct Sow February 27 Feb 27 – Mar 20
Harvest May 29 May 29 – Jul 3

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

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Start Indoors Direct Sow
March Transplant Outdoors Direct Sow
April
May Harvest
June Harvest
July Harvest
August
September
October
November
December
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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 9a

📆 Growing Season

277 days in Bastrop County

Growing Tips for Acorn Squash in Bastrop County

Direct sow Acorn Squash outdoors after February 27 in Bastrop County when soil has warmed and frost danger has passed.

With Bastrop County's clay soil (47% 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 Bastrop County, TX?

Bastrop County is in Zone 9a with an average last frost of February 27. Plan your Acorn Squash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Bastrop County, TX?

Bastrop County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 27 and first fall frost is December 1.

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Your Bastrop County Garden Planner — Free

A 24-page printable planner built for Bastrop County (Zone 9a). 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 Bastrop 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.