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When to Plant Zucchini in Crawford County, IN

Crawford County, Indiana Zone 6b April

Your April planting checklist for Crawford County, Indiana

Welcome to April in Zone 6b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost April 12
Avg. first frost October 21
Soil temp (4") 49°F
Watering Moderate
Pest pressure Low
Daylight 13 hrs
  1. Harden off and plant zucchini

    Pinch off the lowest leaves on each seedling before you plant — it reduces water loss while the roots catch up.

  2. Put zucchini seeds straight in the ground

    Your soil is 49°F — warm enough for these to germinate without babying.

To set up a strong May, finish these tasks
  • Starting indoors: zucchini

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Zucchini is an incredibly prolific summer squash that can produce an abundance of fruit from just a few plants. It is versatile in the kitchen from grilling to baking.

Crawford County, Indiana is in USDA Zone 6b. The average last spring frost is April 12 and the first fall frost is October 21, giving you a growing season of approximately 192 days.

At an elevation of 1,339 feet, Crawford County receives approximately 34.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Zucchini during the growing season.

Crawford County, IN (Zone 6b) Moderate season
192 days
Last Spring Frost April 12
192 growing days
First Fall Frost October 21
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Crawford County Soil Profile

Soil Type

Silt Loam

Soil pH

6.1-6.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (73 days to spare)
Start indoors: Mar 4 Transplant: Apr 22 🍅 Harvest: Jun 10 – Aug 5
Recommended (50%) ✓ Fits season (73 days to spare)
Start indoors: Mar 8 Transplant: Apr 26 🍅 Harvest: Jun 14 – Aug 9
Safe Start (90%) ✓ Fits season (78 days to spare)
Start indoors: Mar 26 Transplant: May 14 🍅 Harvest: Jul 2 – Aug 27

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 Crawford County

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

Soil pH

Your soil pH (6.1–6.9) is within Zucchini's preferred range (6.0–7.5).

Soil Texture

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

Drainage

Drainage is adequate for Zucchini.

Organic Matter

Organic matter is excellent (4.6%) — Zucchini will thrive.

How to Plant Zucchini

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

Succession Planting Zucchini

5
successive plantings in your 192-day season

Sow every 5.1 weeks. Last sowing by Aug 22 to harvest before frost.

Plant Water Budget

Plant needs
1.2″/week
Rainfall provides
0.8″/week
You supply
1.0″/week
Watering frequency 2-3 times/week
Season total 1,665 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Zucchini

Zucchini needs approximately 1.2 inches of water per week (5.2" per month). Here's how your county's rainfall compares month by month.

Month Zucchini Needs Rainfall You Supplement Action
Jan 1.5" 0" ❄️ Dormant
Feb 1.7" 0" ❄️ Dormant
Mar 2.2" 0" ❄️ Dormant
Apr 5.2" 3" 2.2" 💧 Light watering
May 5.2" 3.8" 1.4" 💧 Light watering
Jun 5.2" 4.8" 0.4" 💧 Light watering
Jul 5.2" 4.1" 1.1" 💧 Light watering
Aug 5.2" 3.3" 1.9" 💧 Light watering
Sep 5.2" 2.6" 2.6" 🚿 Regular watering
Oct 5.2" 2.8" 2.4" 💧 Light watering
Nov 2.5" 0" ❄️ Dormant
Dec 1.9" 0" ❄️ Dormant

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

Zucchini 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.

Zucchini needs ~722 GDD — county provides 2,640 GDD Excellent fit

Zucchini Planting Timeline — Crawford County, IN

Zucchini Planting Calendar

Activity When Date Range
Start Indoors March 8 Mar 8 – Mar 22
Transplant Outdoors April 26 Apr 26 – May 10
Direct Sow April 19 Apr 19 – May 10
Harvest June 14 Jun 14 – Aug 9

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 Harvest
July Harvest
August Harvest
September
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.2"/week · 2-3 times/week

📅 Days to Maturity

45–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 6b

📆 Growing Season

192 days in Crawford County

Growing Tips for Zucchini in Crawford County

Direct sow Zucchini outdoors after April 12 in Crawford County when soil has warmed and frost danger has passed.

Your generous 192.0-day season in Crawford County allows multiple plantings of Zucchini. Sow every 22.0 days for continuous harvest.

Common pests for Zucchini 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 after last frost. Harvest when fruits are 6-8 inches long for best flavor and texture. Check plants daily in summer as fruits can double in size overnight.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Zucchini in Crawford County, IN?

Crawford County is in Zone 6b with an average last frost of April 12. Plan your Zucchini planting based on this frost date — see the calendar above for exact timing.

What planting zone is Crawford County, IN?

Crawford County, Indiana is in USDA Hardiness Zone 6b. The average last spring frost is April 12 and first fall frost is October 21.

🌱

Your Crawford County Garden Planner — Free

A 24-page printable planner built for Crawford 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.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Crawford County, IN. 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.