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When to Plant Zucchini in Pope County, MN

Pope County, Minnesota Zone 4b May

May in the garden — Pope County, Minnesota

Here's what deserves your attention in Pope County, Minnesota this month. Everything below is tailored to Zone 4b and timed around your local frost dates.

Avg. last frost May 4
Avg. first frost October 3
Soil temp (4") 56°F
Watering Low
Pest pressure Low
Daylight 14.7 hrs
  1. Harden off and plant zucchini

    Your last frost (May 4) has passed. These warm-season crops can handle outdoor soil now.

  2. Scatter zucchini into prepared beds

    Sow every 2 weeks for a continuous harvest. A single big planting means a single big glut.

Looking ahead to June
  • 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.

Pope County, Minnesota is in USDA Zone 4b. The average last spring frost is May 4 and the first fall frost is October 3, giving you a growing season of approximately 152 days.

At an elevation of 1,061 feet, Pope County receives approximately 31.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Zucchini to ensure they mature before fall.

Pope County, MN (Zone 4b) Moderate season
152 days
Last Spring Frost May 4
152 growing days
First Fall Frost October 3
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Pope County Soil Profile

Soil Type

Silt Loam

Soil pH

6-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (26 days to spare)
Start indoors: Mar 16 Transplant: May 18 🍅 Harvest: Jul 6 – Aug 31
Recommended (50%) ✓ Fits season (26 days to spare)
Start indoors: Mar 23 Transplant: May 25 🍅 Harvest: Jul 13 – Sep 7
Safe Start (90%) ✓ Fits season (24 days to spare)
Start indoors: Apr 5 Transplant: Jun 7 🍅 Harvest: Jul 26 – Sep 20

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 Pope County

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

Soil pH

Your soil pH (6.0–7.0) is within Zucchini's preferred range (6.0–7.5).

Soil Texture

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

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

3
successive plantings in your 152-day season

Sow every 5.1 weeks. Last sowing by Aug 04 to harvest before frost.

Plant Water Budget

Plant needs
1.2″/week
Rainfall provides
0.9″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 553 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 1.3" 0" ❄️ Dormant
Feb 1.3" 0" ❄️ Dormant
Mar 2" 0" ❄️ Dormant
Apr 3.4" 0" ❄️ Dormant
May 5.2" 4" 1.2" 💧 Light watering
Jun 5.2" 3.9" 1.3" 💧 Light watering
Jul 5.2" 3.1" 2.1" 💧 Light watering
Aug 5.2" 3.4" 1.8" 💧 Light watering
Sep 5.2" 2.7" 2.5" 💧 Light watering
Oct 5.2" 2.3" 2.9" 🚿 Regular watering
Nov 2" 0" ❄️ Dormant
Dec 1.8" 0" ❄️ Dormant

Water needs are for active growing months only (May–Oct in Pope 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 ~682 GDD — county provides 1,976 GDD Excellent fit

Zucchini Planting Timeline — Pope County, MN

Zucchini Planting Calendar

Activity When Date Range
Start Indoors March 23 Mar 23 – Apr 6
Transplant Outdoors May 25 May 25 – Jun 8
Direct Sow May 18 May 18 – Jun 8
Harvest July 13 Jul 13 – Sep 7

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 Transplant Outdoors Direct Sow
July Harvest
August Harvest
September Harvest
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.2"/week · 1-2 times/week

📅 Days to Maturity

45–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 4b

📆 Growing Season

152 days in Pope County

Growing Tips for Zucchini in Pope County

Direct sow Zucchini outdoors after May 04 in Pope County when soil has warmed and frost danger has passed.

Your generous 152.0-day season in Pope 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 Pope County, MN?

Pope County is in Zone 4b with an average last frost of May 4. Plan your Zucchini planting based on this frost date — see the calendar above for exact timing.

What planting zone is Pope County, MN?

Pope County, Minnesota is in USDA Hardiness Zone 4b. The average last spring frost is May 4 and first fall frost is October 3.

🌱

Your Pope County Garden Planner — Free

A 24-page printable planner built for Pope County (Zone 4b). 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 Pope County, MN. 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.