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Growing Vidalia in Illinois

Allium cepa 'Vidalia'

Humid ContinentalZones 5, 6, 7155-200 day season

🏛️ Illinois Growing Overview

Climate
Humid Continental
Primary Zone
Zone 5
Last Frost Range
April 15 - May 10
First Frost Range
October 5 - October 25
Famous Illinois crops: Corn, Soybeans, Pumpkins, Sweet corn, Hogs

📍 Zone Suitability in Illinois

✓ Best Zones for Vidalia

Zone 6185 days

This variety matures in 170 days, well within Zone 6's 185-day growing season.

Zone 7210 days

This variety matures in 170 days, well within Zone 7's 210-day growing season.

⚠️ Challenging Zones

Zone 5160 days

This variety needs 170 days, but Zone 5 only has 160 frost-free days.

Use season extension (cold frames, row covers) to gain 10+ days, or choose an earlier-maturing variety.

⚠️ Illinois Growing Challenges

⚠️Variable spring weather
⚠️Humid summers
⚠️Corn rootworm
⚠️Japanese beetles

✓ Illinois Growing Advantages

✓World-class prairie soil
✓Adequate rainfall
✓Strong extension support

📊 Vidalia Quick Facts

Days to Maturity
170-190
Difficulty
intermediate
Season
fall
Type
Heirloom

🎓 Illinois Extension Resources

For local, research-based growing information, visit your state's Cooperative Extension Service:

Visit Illinois Extension →

📍 View Vidalia Guide for Other States

CaliforniaTexasFloridaNew YorkPennsylvaniaOhioGeorgiaNorth CarolinaMichiganIllinoisWashingtonOregon

🌱 Other Onion Varieties for Illinois

Ailsa Craig
105-125 days
Ambition (F1)
90-120 days
Cipollini Red
80-95 days
Cipollini Yellow
80-95 days
Conservor (F1)
90-120 days
Copra
104-114 days

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