Blog

When to Plant Hubbard Squash in Walton County, GA

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.

Walton County, Georgia is in USDA Zone 7b. The average last spring frost is March 22 and the first fall frost is November 13, giving you a growing season of approximately 236 days.

At an elevation of 310 feet, Walton County receives approximately 61.3 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90ยฐF, providing good warmth for Hubbard Squash during the growing season. 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.

Walton County, GA (Zone 7b) Long season
236 days
Last Spring Frost March 22
236 growing days
First Fall Frost November 13

Walton County Soil Profile

Soil Type

Clay Loam

Soil pH

5.4-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (84 days to spare)
Start indoors: Feb 11 Transplant: Mar 25 🍅 Harvest: Jul 8 – Aug 12
Recommended (50%) ✓ Fits season (82 days to spare)
Start indoors: Feb 22 Transplant: Apr 5 🍅 Harvest: Jul 19 – Aug 23
Safe Start (90%) ✓ Fits season (80 days to spare)
Start indoors: Mar 13 Transplant: Apr 24 🍅 Harvest: Aug 7 – Sep 11

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 Walton County

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

Soil pH

Your soil pH (5.4โ€“6.3) is more acidic than Hubbard Squash prefers (6.0โ€“7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.8%). 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
1.1″/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€” 4.8" 0" โ„๏ธ Dormant
Feb โ€” 5" 0" โ„๏ธ Dormant
Mar 4.3" 5.3" 0" โœ… Rainfall sufficient
Apr 4.3" 4.1" 0.2" ๐Ÿ’ง Light watering
May 4.3" 5.3" 0" โœ… Rainfall sufficient
Jun 4.3" 6" 0" โœ… Rainfall sufficient
Jul 4.3" 7.1" 0" โœ… Rainfall sufficient
Aug 4.3" 5.4" 0" โœ… Rainfall sufficient
Sep 4.3" 4.9" 0" โœ… Rainfall sufficient
Oct 4.3" 3.8" 0.5" ๐Ÿ’ง Light watering
Nov 4.3" 4.4" 0" โœ… Rainfall sufficient
Dec โ€” 5.3" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Walton 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 ~1,925 GDD — county provides 4,130 GDD Excellent fit

Hubbard Squash Planting Timeline โ€” Walton County, GA

Hubbard Squash Planting Calendar

Activity When Date Range
Start Indoors February 22 Feb 22 โ€“ Mar 8
Transplant Outdoors April 5 Apr 5 โ€“ Apr 19
Direct Sow March 29 Mar 29 โ€“ Apr 19
Harvest July 19 Jul 19 โ€“ Aug 23

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: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

236 days in Walton County

Growing Tips for Hubbard Squash in Walton County

Direct sow Hubbard Squash outdoors after March 22 in Walton County when soil has warmed and frost danger has passed.

With Walton County's clay soil (31% clay), work in 3-4 inches of compost before planting Hubbard Squash. Avoid tilling when soil is wet to prevent compaction.

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 Walton County, GA?

Walton County is in Zone 7b with an average last frost of March 22. Plan your Hubbard Squash planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Walton County, GA?

Walton County, Georgia is in USDA Hardiness Zone 7b. The average last spring frost is March 22 and first fall frost is November 13.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Walton County gardeners in Zone 7b 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 Walton County, GA. Local conditions may vary. Last updated: April 2026.