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When to Plant Hubbard Squash in Perry County, PA

Perry County, Pennsylvania Zone 7a May

Perry County, Pennsylvania gardeners: here's your May plan

We've pulled the most time-sensitive tasks for Perry County, Pennsylvania this May and put them front and centre. Tackle them in order.

Avg. last frost April 24
Avg. first frost October 22
Soil temp (4") 62°F
Watering Moderate
Pest pressure Low
Daylight 14.2 hrs
  1. Set out hubbard squash seedlings

    Harden off for 7 days — a little more sun each day — before planting. That's the difference between a seedling that thrives and one that stalls.

  2. Seed hubbard squash outdoors

    Succession planting is the secret here. Put in a row now, another in 2 weeks, a third in 4.

  3. Fire up the seed-starting tray: hubbard squash

    Give them 6–8 weeks indoors before the last frost and you'll transplant into warm soil with seedlings that are already leaping.

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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.

Perry County, Pennsylvania is in USDA Zone 7a. The average last spring frost is April 24 and the first fall frost is October 22, giving you a growing season of approximately 181 days.

At an elevation of 693 feet, Perry County receives approximately 40.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Hubbard Squash during the growing season.

Perry County, PA (Zone 7a) Moderate season
181 days
Last Spring Frost April 24
181 growing days
First Fall Frost October 22
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Perry County Soil Profile

Soil Type

Silt Loam

Soil pH

5-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (30 days to spare)
Start indoors: Mar 20 Transplant: May 1 🍅 Harvest: Aug 14 – Sep 18
Recommended (50%) ✓ Fits season (27 days to spare)
Start indoors: Mar 27 Transplant: May 8 🍅 Harvest: Aug 21 – Sep 25
Safe Start (90%) ✓ Fits season (19 days to spare)
Start indoors: Apr 15 Transplant: May 27 🍅 Harvest: Sep 9 – Oct 14

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 Perry County

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

Soil pH

Your soil pH (5.0–6.3) is more acidic than Hubbard Squash prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Hubbard Squash.

Organic Matter

Organic matter is moderate (3.0%). 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
0.9″/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 2.9" 0" ❄️ Dormant
Feb 3" 0" ❄️ Dormant
Mar 3.7" 0" ❄️ Dormant
Apr 4.3" 3.8" 0.5" 💧 Light watering
May 4.3" 3.3" 1" 💧 Light watering
Jun 4.3" 4.2" 0.1" 💧 Light watering
Jul 4.3" 4.5" 0" ✅ Rainfall sufficient
Aug 4.3" 3.4" 0.9" 💧 Light watering
Sep 4.3" 3.1" 1.2" 💧 Light watering
Oct 4.3" 2.8" 1.5" 💧 Light watering
Nov 2.6" 0" ❄️ Dormant
Dec 3.3" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Perry 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 3,031 GDD Excellent fit

Hubbard Squash Planting Timeline — Perry County, PA

Hubbard Squash Planting Calendar

Activity When Date Range
Start Indoors March 27 Mar 27 – Apr 10
Transplant Outdoors May 8 May 8 – May 22
Direct Sow May 1 May 1 – May 22
Harvest August 21 Aug 21 – Sep 25

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

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors
April Start Indoors
May Transplant Outdoors Direct Sow
June
July
August Harvest
September Harvest
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 7a

📆 Growing Season

181 days in Perry County

Growing Tips for Hubbard Squash in Perry County

Direct sow Hubbard Squash outdoors after April 24 in Perry County when soil has warmed and frost danger has passed.

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 Perry County, PA?

Perry County is in Zone 7a with an average last frost of April 24. Plan your Hubbard Squash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Perry County, PA?

Perry County, Pennsylvania is in USDA Hardiness Zone 7a. The average last spring frost is April 24 and first fall frost is October 22.

🌱

Your Perry County Garden Planner — Free

A 24-page printable planner built for Perry 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 Perry County, PA. 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.