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When to Plant Hubbard Squash in Newton County, TX

Newton County, Texas Zone 9a May

Top priorities for Newton County, Texas gardeners in May

A quick May briefing for Newton County, Texas gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 9
Avg. first frost November 16
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
Before June arrives, get these ready
  • First harvests: hubbard squash

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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.

Newton County, Texas is in USDA Zone 9a. The average last spring frost is March 9 and the first fall frost is November 16, giving you a growing season of approximately 252 days.

At an elevation of 33 feet, Newton County receives approximately 77 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 92°F, providing good warmth for Hubbard Squash during the growing season. Sandy soil warms quickly in spring — great for early planting — 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.

Newton County, TX (Zone 9a) Long season
252 days
Last Spring Frost March 9
252 growing days
First Fall Frost November 16
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Newton County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.3-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (104 days to spare)
Start indoors: Feb 3 Transplant: Mar 10 🍅 Harvest: Jun 23 – Jul 28
Recommended (50%) ✓ Fits season (105 days to spare)
Start indoors: Feb 9 Transplant: Mar 16 🍅 Harvest: Jun 29 – Aug 3
Safe Start (90%) ✓ Fits season (92 days to spare)
Start indoors: Mar 10 Transplant: Apr 14 🍅 Harvest: Jul 28 – Sep 1

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 Newton County

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

Soil pH

Your soil pH (5.3–6.3) is more acidic than Hubbard Squash prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Newton 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 moderate (2.3%). 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
1.3″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 1.8" 0" ❄️ Dormant
Feb 2.6" 0" ❄️ Dormant
Mar 4.3" 5.1" 0" ✅ Rainfall sufficient
Apr 4.3" 8.6" 0" ✅ Rainfall sufficient
May 4.3" 10.7" 0" ✅ Rainfall sufficient
Jun 4.3" 11.9" 0" ✅ Rainfall sufficient
Jul 4.3" 9.9" 0" ✅ Rainfall sufficient
Aug 4.3" 9.3" 0" ✅ Rainfall sufficient
Sep 4.3" 7.4" 0" ✅ Rainfall sufficient
Oct 4.3" 5.4" 0" ✅ Rainfall sufficient
Nov 4.3" 2.7" 1.6" 💧 Light watering
Dec 1.8" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Newton County). Supplement amounts are based on average rainfall — 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" — 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.

Hubbard Squash needs ~2,090 GDD — county provides 4,788 GDD Excellent fit

Hubbard Squash Planting Timeline — Newton County, TX

Hubbard Squash Planting Calendar

Activity When Date Range
Start Indoors February 9 Feb 9 – Feb 23
Transplant Outdoors March 16 Mar 16 – Mar 30
Direct Sow March 9 Mar 9 – Mar 30
Harvest June 29 Jun 29 – Aug 3

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

100–120 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

252 days in Newton County

Growing Tips for Hubbard Squash in Newton County

Direct sow Hubbard Squash outdoors after March 09 in Newton County when soil has warmed and frost danger has passed.

Sandy soil in Newton County dries quickly — 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 Newton County, TX?

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

What planting zone is Newton County, TX?

Newton County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is March 9 and first fall frost is November 16.

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Your Newton County Garden Planner — Free

A 24-page printable planner built for Newton 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 Newton 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.