When to Plant Spaghetti Squash in Arkansaw, Wisconsin (54721)

Location

Arkansaw, Wisconsin

ZIP Code

54721

USDA Zone

Last Frost

Tuesday, May 5, 2026

📅 Your 2026 Planting Dates

Start Seeds Indoors

Tuesday, April 7, 2026

Transplant Outdoors

Tuesday, May 19, 2026

Based on last frost Tuesday, May 5, 2026 · Zone 4b

Pro tip: Start Spaghetti Squash seeds indoors 4 weeks before your last frost date, then transplant outdoors around Tuesday, May 19, 2026.

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🌿 Plant Details

Scientific Name Cucurbita pepo

Days to Maturity 90 days

Mature Height 12-18"

Spread 60"

Type Vine

Fruit Size Large (4-8 lbs)

☀️ Growing Requirements

☀️

Sun

Full Sun (6-8 hours)

💧

Water

Regular (1 inch/week)

↔️

Spacing

48" apart

🌱

Planting Depth

1" deep

Seeds typically germinate in 5-10 days

Ready to Plant Spaghetti Squash in Arkansaw?

Get your seeds now so they're ready by Tuesday, April 7, 2026.

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🤝 Good Companions

CornBeanMarigoldNasturtium

⚠️ Avoid Planting Near

Potato

🤝

Full Companion Planting Guide for Spaghetti Squash

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

🛠️ Supplies You'll Need

🌱 Seed Starting Trays 🪴 Seed Starting Mix 💡 Grow Lights 🌡️ Heat Mat 🪵 Raised Garden Bed 🌍 Vegetable Garden Soil 🛠️ Hand Trowel Set 🚿 Watering Can

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🌾 Seed Saving Guide

🟡 Moderate

✅ Open-pollinated — seeds grow true to parent

When to Harvest Seed

Cure squash for 1 month after harvest before extracting seeds.

Processing

Scoop seeds, rinse thoroughly, dry flat on screen for 2 weeks.

Seed Viability

Up to 4 years when stored cool, dark, and dry.

Pro Tip

Spaghetti squash is C. pepo — crosses with zucchini, acorn, and pumpkin. Isolate by 500 feet.

🪴

Raised Bed Planting Guides

A 4×8 bed fits 2 plants of Spaghetti Squash. See plant counts, spacing grids, and companion pairings for every bed size →

Frequently Asked Questions

When should I plant Spaghetti Squash in Arkansaw, Wisconsin? +

In Arkansaw (Zone 4b), start Spaghetti Squash seeds indoors around Tuesday, April 7, 2026 and transplant outdoors around Tuesday, May 19, 2026.

What is the last frost date for Arkansaw, Wisconsin? +

The average last spring frost date for Arkansaw, Wisconsin (ZIP 54721) is around Tuesday, May 5, 2026. This is based on NOAA climate normals for USDA Zone 4b.

How long does Spaghetti Squash take to grow? +

Spaghetti Squash typically matures in about 90 days from transplanting. In Arkansaw, that means you can expect harvest around Tuesday, May 19, 2026 plus 90 days.

Should I start Spaghetti Squash indoors or direct sow in Wisconsin? +

Spaghetti Squash should be started indoors 4 weeks before your last frost date. In Arkansaw, that means starting around Tuesday, April 7, 2026.

📚 More Spaghetti Squash Planting Guides

🗺️

Spaghetti Squash in Wisconsin

Zone-by-zone breakdown · Full state guide

→ 🌡️

Zone 4b Spaghetti Squash Guide

All cities in your zone · Avg dates

→

Other Plants for Arkansaw

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Growing Spaghetti Squash in Zone 4b

Spaghetti Squash (Cucurbita pepo) is a popular garden vegetable. In Arkansaw, Wisconsin, which is in USDA Hardiness Zone 4b, you should start seeds indoors around Tuesday, April 7, 2026.

Your average last frost date is Tuesday, May 5, 2026. Plan to transplant your Spaghetti Squash seedlings outdoors around Tuesday, May 19, 2026, about 2 weeks after your last frost date.