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When to Plant Hubbard Squash in Surry County, NC

Surry County, North Carolina Zone 7a April

What to do in April

We've pulled the most time-sensitive tasks for Surry County, North Carolina this April and put them front and centre. Tackle them in order.

Avg. last frost April 20
Avg. first frost October 19
Soil temp (4") 58°F
Watering Low
Pest pressure Moderate
Daylight 12.9 hrs
  1. Scatter hubbard squash into prepared beds

    Thin ruthlessly once seedlings are up. Crowded roots mean smaller crops from every plant.

Coming up in May — start thinking about
  • Transplants going out: hubbard squash
  • Starting indoors: 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.

Surry County, North Carolina is in USDA Zone 7a. The average last spring frost is April 20 and the first fall frost is October 19, giving you a growing season of approximately 182 days.

At an elevation of 104 feet, Surry County receives approximately 51.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 89°F, 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.

Surry County, NC (Zone 7a) Moderate season
182 days
Last Spring Frost April 20
182 growing days
First Fall Frost October 19

Surry County Soil Profile

Soil Type

Clay Loam

Soil pH

5.4-6.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (32 days to spare)
Start indoors: Mar 16 Transplant: Apr 27 🍅 Harvest: Aug 10 – Sep 14
Recommended (50%) ✓ Fits season (28 days to spare)
Start indoors: Mar 23 Transplant: May 4 🍅 Harvest: Aug 17 – Sep 21
Safe Start (90%) ✓ Fits season (18 days to spare)
Start indoors: Apr 13 Transplant: May 25 🍅 Harvest: Sep 7 – Oct 12

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 Surry County

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

Soil pH

Your soil pH (5.4–6.4) is more acidic than Hubbard Squash prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

The clay loam soil in Surry County is excellent for Hubbard Squash — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.4%). 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 3.9" 0" ❄️ Dormant
Feb 3.5" 0" ❄️ Dormant
Mar 5.3" 0" ❄️ Dormant
Apr 4.3" 3.9" 0.4" 💧 Light watering
May 4.3" 4.3" 0" ✅ Rainfall sufficient
Jun 4.3" 5.1" 0" ✅ Rainfall sufficient
Jul 4.3" 4.6" 0" ✅ Rainfall sufficient
Aug 4.3" 4.5" 0" ✅ Rainfall sufficient
Sep 4.3" 4.2" 0.1" 💧 Light watering
Oct 4.3" 3.3" 1" 💧 Light watering
Nov 4.2" 0" ❄️ Dormant
Dec 4.5" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Surry 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 ~1,842 GDD — county provides 3,048 GDD Excellent fit

Hubbard Squash Planting Timeline — Surry County, NC

Hubbard Squash Planting Calendar

Activity When Date Range
Start Indoors March 23 Mar 23 – Apr 6
Transplant Outdoors May 4 May 4 – May 18
Direct Sow April 27 Apr 27 – May 18
Harvest August 17 Aug 17 – Sep 21

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

Month-by-Month Timeline

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

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 7a

📆 Growing Season

182 days in Surry County

Growing Tips for Hubbard Squash in Surry County

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

With Surry County's clay soil (27% 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 Surry County, NC?

Surry County is in Zone 7a with an average last frost of April 20. Plan your Hubbard Squash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Surry County, NC?

Surry County, North Carolina is in USDA Hardiness Zone 7a. The average last spring frost is April 20 and first fall frost is October 19.

🌱

Your Surry County Garden Planner — Free

A 24-page printable planner built for Surry County (Zone 7a). 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 Surry County, NC. Local conditions may vary. Last updated: April 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.