When to Plant Popcorn in Green Bay, Wisconsin (54313)

Location

Green Bay, Wisconsin

ZIP Code

54313

USDA Zone

Last Frost

Saturday, April 25, 2026

📅 Your 2026 Planting Dates

Direct Sow Outdoors

Saturday, May 9, 2026

Based on last frost Saturday, April 25, 2026 · Zone 5b

Pro tip: Sow Popcorn directly outdoors 2 weeks after your last frost date — it needs warm soil.

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🌿 Plant Details

Scientific Name Zea mays everta

Days to Maturity 100 days

Mature Height 48-84"

Spread 18"

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Regular (1-2 inches/week)

↔️

Spacing

12" apart

🌱

Planting Depth

1" deep

Seeds typically germinate in 7-10 days

Ready to Plant Popcorn in Green Bay?

Get your seeds now so they're ready by Saturday, May 9, 2026.

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🤝 Good Companions

BeanSquashCucumber

⚠️ Avoid Planting Near

TomatoSweet Corn (cross-pollination)

🤝

Full Companion Planting Guide for Popcorn

See which plants help Popcorn thrive, which to keep away, and raised bed layout tips →

🛠️ Supplies You'll Need

🪵 Raised Garden Bed 🌍 Vegetable Garden Soil 🛠️ Hand Trowel Set 🚿 Watering Can

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🌾 Seed Saving Guide

🔴 Difficult

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Let ears dry completely on the stalk past frost. Kernels should be rock-hard before harvesting.

Processing

Husk dried ears, shell kernels, cure 6–8 weeks in a warm, ventilated space before sealing in containers.

Seed Viability

Up to 2 years when stored cool, dark, and dry.

Pro Tip

Wind-pollinated — requires 1000-foot isolation from sweet corn and other corn types. Under-dried popcorn won't pop.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 32 plants of Popcorn. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Popcorn in Green Bay, Wisconsin? +

In Green Bay (Zone 5b), direct sow Popcorn outdoors around Saturday, May 9, 2026.

What is the last frost date for Green Bay, Wisconsin? +

The average last spring frost date for Green Bay, Wisconsin (ZIP 54313) is around Saturday, April 25, 2026. This is based on NOAA climate normals for USDA Zone 5b.

How long does Popcorn take to grow? +

Popcorn typically matures in about 100 days from direct sowing. In Green Bay, that means you can expect harvest around Saturday, May 9, 2026 plus 100 days.

Should I start Popcorn indoors or direct sow in Wisconsin? +

Popcorn does best when direct sown outdoors. In Green Bay, sow directly around Saturday, May 9, 2026.

📚 More Popcorn Planting Guides

🗺️

Popcorn in Wisconsin

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 5b Popcorn Guide

All cities in your zone · Avg dates

→

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Growing Popcorn in Zone 5b

Popcorn (Zea mays everta) is a popular garden vegetable. In Green Bay, Wisconsin, which is in USDA Hardiness Zone 5b, you should direct sow seeds around Saturday, May 9, 2026.

Your average last frost date is Saturday, April 25, 2026. Popcorn grows well when direct sown, as it doesn't transplant well or germinates quickly outdoors.