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When to Plant Hubbard Squash in Falls County, TX

Hubbard squash is a large, bumpy-skinned winter squash with dense, sweet, dry flesh ideal for baking and pies. The hard shell allows storage for 6 months or more.

Falls County, Texas is in USDA Zone 8a. The average last spring frost is March 17 and the first fall frost is November 13, giving you a growing season of approximately 241 days.

At an elevation of 66 feet, Falls County receives approximately 66.1 inches of rainfall annually with predominantly clay soil. Summer highs average 97ยฐF, so Hubbard Squash may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Hubbard Squash, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Hubbard Squash root diseases.

Falls County, TX (Zone 8a) Long season
241 days
Last Spring Frost March 17
241 growing days
First Fall Frost November 13

Falls County Soil Profile

Soil Type

Clay

Soil pH

7.1-8.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (93 days to spare)
Start indoors: Feb 6 Transplant: Mar 20 🍅 Harvest: Jul 3 – Aug 7
Recommended (50%) ✓ Fits season (87 days to spare)
Start indoors: Feb 17 Transplant: Mar 31 🍅 Harvest: Jul 14 – Aug 18
Safe Start (90%) ✓ Fits season (80 days to spare)
Start indoors: Mar 11 Transplant: Apr 22 🍅 Harvest: Aug 5 – Sep 9

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 Falls County

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

Soil pH

Your soil pH (7.1โ€“8.2) is more alkaline than Hubbard Squash prefers (6.0โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.6%). Annual compost additions will help Hubbard Squash.

How to Plant Hubbard Squash

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

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.2″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Hubbard Squash

Hubbard Squash needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Hubbard Squash Needs Rainfall You Supplement Action
Jan โ€” 1.8" 0" โ„๏ธ Dormant
Feb โ€” 2" 0" โ„๏ธ Dormant
Mar 4.3" 4.7" 0" โœ… Rainfall sufficient
Apr 4.3" 6.7" 0" โœ… Rainfall sufficient
May 4.3" 10" 0" โœ… Rainfall sufficient
Jun 4.3" 9.5" 0" โœ… Rainfall sufficient
Jul 4.3" 9.2" 0" โœ… Rainfall sufficient
Aug 4.3" 7.4" 0" โœ… Rainfall sufficient
Sep 4.3" 7" 0" โœ… Rainfall sufficient
Oct 4.3" 4.1" 0.2" ๐Ÿ’ง Light watering
Nov 4.3" 2.2" 2.1" ๐Ÿ’ง Light watering
Dec โ€” 1.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Falls County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Hubbard 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.

Hubbard Squash needs ~2,502 GDD — county provides 5,482 GDD Excellent fit

Hubbard Squash Planting Timeline โ€” Falls County, TX

Hubbard Squash Planting Calendar

Activity When Date Range
Start Indoors February 17 Feb 17 โ€“ Mar 3
Transplant Outdoors March 31 Mar 31 โ€“ Apr 14
Direct Sow March 24 Mar 24 โ€“ Apr 14
Harvest July 14 Jul 14 โ€“ Aug 18

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

100โ€“120 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

241 days in Falls County

Growing Tips for Hubbard Squash in Falls County

Direct sow Hubbard Squash outdoors after March 17 in Falls County when soil has warmed and frost danger has passed.

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

With summer highs reaching 97ยฐF in Falls County, provide afternoon shade for Hubbard Squash and water deeply in the morning.

Common pests for Hubbard 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 in short-season areas. Requires ample space and rich soil. Harvest when the skin is very hard and the color is deep. Cure in the sun before storing.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Hubbard Squash in Falls County, TX?

Falls County is in Zone 8a with an average last frost of March 17. Plan your Hubbard Squash planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Falls County, TX?

Falls County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 17 and first fall frost is November 13.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Falls 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 Falls County, TX. Local conditions may vary. Last updated: April 2026.