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When to Plant Pumpkin in Fountain County, IN

Fountain County, Indiana Zone 6a May

This month in Fountain County, Indiana

Your Fountain County, Indiana garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.

Avg. last frost April 16
Avg. first frost October 17
Soil temp (4") 58°F
Watering Moderate
Pest pressure Low
Daylight 14.2 hrs
  1. Sow pumpkin in trays indoors

    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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Pumpkins are large-fruited squash varieties grown for eating, decoration, and seed production. They require ample space and a long, warm growing season.

Fountain County, Indiana is in USDA Zone 6a. The average last spring frost is April 16 and the first fall frost is October 17, giving you a growing season of approximately 184 days.

At an elevation of 1,088 feet, Fountain County receives approximately 30.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Pumpkin during the growing season.

Fountain County, IN (Zone 6a) Moderate season
184 days
Last Spring Frost April 16
184 growing days
First Fall Frost October 17

Fountain County Soil Profile

Soil Type

Silt Loam

Soil pH

6.1-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (27 days to spare)
Start indoors: Mar 9 Transplant: Apr 27 🍅 Harvest: Jul 27 – Sep 14
Recommended (50%) ✓ Fits season (30 days to spare)
Start indoors: Mar 12 Transplant: Apr 30 🍅 Harvest: Jul 30 – Sep 17
Safe Start (90%) ✓ Fits season (24 days to spare)
Start indoors: Mar 30 Transplant: May 18 🍅 Harvest: Aug 17 – Oct 5

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 Fountain County

How your county's soil matches Pumpkin's growing requirements.

Soil pH

Your soil pH (6.1–7.2) is within Pumpkin's preferred range (6.0–7.5).

Soil Texture

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

Drainage

Drainage is adequate for Pumpkin.

Organic Matter

Organic matter is excellent (4.0%) — Pumpkin will thrive.

How to Plant Pumpkin

1"
Planting Depth
30"
Between Plants
42"
Between Rows

Plant Water Budget

Plant needs
1.3″/week
Rainfall provides
0.7″/week
You supply
1.0″/week
Watering frequency 2-3 times/week
Season total 1,627 gal / 100 sq ft

Monthly Watering Guide for Pumpkin

Pumpkin needs approximately 1.3 inches of water per week (5.6" per month). Here's how your county's rainfall compares month by month.

Month Pumpkin Needs Rainfall You Supplement Action
Jan 1.3" 0" ❄️ Dormant
Feb 1.3" 0" ❄️ Dormant
Mar 2" 0" ❄️ Dormant
Apr 5.6" 2.6" 3" 🚿 Regular watering
May 5.6" 3.4" 2.2" 💧 Light watering
Jun 5.6" 4.3" 1.3" 💧 Light watering
Jul 5.6" 3" 2.6" 💧 Light watering
Aug 5.6" 3.3" 2.3" 💧 Light watering
Sep 5.6" 2.6" 3" 🚿 Regular watering
Oct 5.6" 2.6" 3" 🚿 Regular watering
Nov 2.4" 0" ❄️ Dormant
Dec 1.8" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Fountain County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Pumpkin 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.

Pumpkin needs ~1,409 GDD — county provides 2,530 GDD Excellent fit

Pumpkin Planting Timeline — Fountain County, IN

Pumpkin Planting Calendar

Activity When Date Range
Start Indoors March 12 Mar 12 – Mar 26
Transplant Outdoors April 30 Apr 30 – May 14
Direct Sow April 23 Apr 23 – May 14
Harvest July 30 Jul 30 – Sep 17

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.3"/week · 2-3 times/week

📅 Days to Maturity

85–120 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 6a

📆 Growing Season

184 days in Fountain County

Growing Tips for Pumpkin in Fountain County

Direct sow Pumpkin outdoors after April 16 in Fountain County when soil has warmed and frost danger has passed.

Common pests for Pumpkin in this region include squash vine borer and cucumber beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow on mounds after last frost. Allow 6-10 feet between plants. Slip a board under developing fruit to prevent rot. Harvest when rind is hard and deep in color.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Pumpkin in Fountain County, IN?

Fountain County is in Zone 6a with an average last frost of April 16. Plan your Pumpkin planting based on this frost date — see the calendar above for exact timing.

What planting zone is Fountain County, IN?

Fountain County, Indiana is in USDA Hardiness Zone 6a. The average last spring frost is April 16 and first fall frost is October 17.

🌱

Your Fountain County Garden Planner — Free

A 24-page printable planner built for Fountain County (Zone 6a). 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 Fountain County, IN. 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.