Blog

When to Plant Hubbard Squash in Bowie 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.

Bowie County, Texas is in USDA Zone 8a. The average last spring frost is March 20 and the first fall frost is November 12, giving you a growing season of approximately 237 days.

At an elevation of 380 feet, Bowie County receives approximately 71.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 91ยฐF, providing good warmth for Hubbard Squash during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Hubbard Squash will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Hubbard Squash root diseases.

Bowie County, TX (Zone 8a) Long season
237 days
Last Spring Frost March 20
237 growing days
First Fall Frost November 12

Bowie County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.4-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (82 days to spare)
Start indoors: Feb 11 Transplant: Mar 25 🍅 Harvest: Jul 8 – Aug 12
Recommended (50%) ✓ Fits season (83 days to spare)
Start indoors: Feb 20 Transplant: Apr 3 🍅 Harvest: Jul 17 – Aug 21
Safe Start (90%) ✓ Fits season (80 days to spare)
Start indoors: Mar 12 Transplant: Apr 23 🍅 Harvest: Aug 6 – Sep 10

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 Bowie County

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

Soil pH

Your soil pH (5.4โ€“6.7) overlaps with Hubbard Squash's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

Sandy soil in Bowie County warms quickly in spring but drains fast. Hubbard Squash will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (2.0%). Add 2-3 inches of compost before planting 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
1.3″/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€” 2.5" 0" โ„๏ธ Dormant
Mar 4.3" 4.2" 0.1" ๐Ÿ’ง Light watering
Apr 4.3" 8.3" 0" โœ… Rainfall sufficient
May 4.3" 10.7" 0" โœ… Rainfall sufficient
Jun 4.3" 11.9" 0" โœ… Rainfall sufficient
Jul 4.3" 8.4" 0" โœ… Rainfall sufficient
Aug 4.3" 7.7" 0" โœ… Rainfall sufficient
Sep 4.3" 6.3" 0" โœ… Rainfall sufficient
Oct 4.3" 5" 0" โœ… Rainfall sufficient
Nov 4.3" 2.6" 1.7" ๐Ÿ’ง Light watering
Dec โ€” 1.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Bowie 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 ~2,008 GDD — county provides 4,325 GDD Excellent fit

Hubbard Squash Planting Timeline โ€” Bowie County, TX

Hubbard Squash Planting Calendar

Activity When Date Range
Start Indoors February 20 Feb 20 โ€“ Mar 6
Transplant Outdoors April 3 Apr 3 โ€“ Apr 17
Direct Sow March 27 Mar 27 โ€“ Apr 17
Harvest July 17 Jul 17 โ€“ Aug 21

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

Month-by-Month Timeline

MonthActivities
January โ€”
February Start Indoors
March Start Indoors 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: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

237 days in Bowie County

Growing Tips for Hubbard Squash in Bowie County

Direct sow Hubbard Squash outdoors after March 20 in Bowie County when soil has warmed and frost danger has passed.

Sandy soil in Bowie County dries quickly โ€” mulch Hubbard Squash with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

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 Bowie County, TX?

Bowie County is in Zone 8a with an average last frost of March 20. Plan your Hubbard Squash planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Bowie County, TX?

Bowie County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 20 and first fall frost is November 12.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Bowie County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Bowie County, TX. Local conditions may vary. Last updated: April 2026.