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When to Plant Hubbard Squash in Roane County, WV

Roane County, West Virginia Zone 6b May

May to-do list for Roane County, West Virginia

Here's what deserves your attention in Roane County, West Virginia this month. Everything below is tailored to Zone 6b and timed around your local frost dates.

Avg. last frost April 25
Avg. first frost October 22
Soil temp (4") 60°F
Watering Moderate
Pest pressure Low
Daylight 14.1 hrs
  1. Transplant hubbard squash outside

    Plant tomatoes deep — bury the stem up to the first true leaves to grow extra roots. Everything else goes in at the same depth it grew in the tray.

  2. Sow hubbard squash where they'll grow

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

  3. Time to start hubbard squash inside

    You're about 24 weeks out from your last frost — the perfect window to get these germinating indoors.

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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.

Roane County, West Virginia is in USDA Zone 6b. The average last spring frost is April 25 and the first fall frost is October 22, giving you a growing season of approximately 180 days.

At an elevation of 2,210 feet, Roane County receives approximately 42.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Hubbard Squash during the growing season.

Roane County, WV (Zone 6b) Moderate season
180 days
Last Spring Frost April 25
180 growing days
First Fall Frost October 22

Roane County Soil Profile

Soil Type

Silt Loam

Soil pH

5.2-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (30 days to spare)
Start indoors: Mar 12 Transplant: Apr 30 🍅 Harvest: Aug 13 – Sep 17
Recommended (50%) ✓ Fits season (26 days to spare)
Start indoors: Mar 21 Transplant: May 9 🍅 Harvest: Aug 22 – Sep 26
Safe Start (90%) ✓ Fits season (17 days to spare)
Start indoors: Apr 10 Transplant: May 29 🍅 Harvest: Sep 11 – Oct 16

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 Roane County

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

Soil pH

Your soil pH (5.2–7.1) overlaps with Hubbard Squash's range (6.0–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Roane County is excellent for Hubbard Squash — 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
1.0″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 10 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 3.1" 0" ❄️ Dormant
Feb 3.6" 0" ❄️ Dormant
Mar 4.6" 0" ❄️ Dormant
Apr 4.3" 3.1" 1.2" 💧 Light watering
May 4.3" 3.7" 0.6" 💧 Light watering
Jun 4.3" 3.6" 0.7" 💧 Light watering
Jul 4.3" 4.4" 0" ✅ Rainfall sufficient
Aug 4.3" 4.4" 0" ✅ Rainfall sufficient
Sep 4.3" 2.9" 1.4" 💧 Light watering
Oct 4.3" 2.6" 1.7" 💧 Light watering
Nov 3.4" 0" ❄️ Dormant
Dec 3.1" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Roane 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 ~1,925 GDD — county provides 3,150 GDD Excellent fit

Hubbard Squash Planting Timeline — Roane County, WV

Hubbard Squash Planting Calendar

Activity When Date Range
Start Indoors March 21 Mar 21 – Apr 4
Transplant Outdoors May 9 May 9 – May 23
Direct Sow May 2 May 2 – May 23
Harvest August 22 Aug 22 – Sep 26

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

100–120 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 6b

📆 Growing Season

180 days in Roane County

Growing Tips for Hubbard Squash in Roane County

Direct sow Hubbard Squash outdoors after April 25 in Roane 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 Roane County, WV?

Roane County is in Zone 6b with an average last frost of April 25. Plan your Hubbard Squash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Roane County, WV?

Roane County, West Virginia is in USDA Hardiness Zone 6b. The average last spring frost is April 25 and first fall frost is October 22.

🌱

Your Roane County Garden Planner — Free

A 24-page printable planner built for Roane County (Zone 6b). 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 Roane County, WV. 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.