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Growing Copra (F1) in Colorado
Allium cepa 'Copra (F1)'
Semi-arid ContinentalZones 3, 4, 5, 6, 790-165 day season
🏛️ Colorado Growing Overview
Climate
Semi-arid Continental
Primary Zone
Zone 5
Last Frost Range
April 15 - June 15
First Frost Range
September 1 - October 15
Famous Colorado crops: Potatoes, Onions, Melons, Peaches, Cattle
📍 Zone Suitability in Colorado
✓ Best Zones for Copra (F1)
Zone 3120 days
This variety matures in 90 days, well within Zone 3's 120-day growing season.
Zone 4135 days
This variety matures in 90 days, well within Zone 4's 135-day growing season.
Zone 5160 days
This variety matures in 90 days, well within Zone 5's 160-day growing season.
Zone 6185 days
This variety matures in 90 days, well within Zone 6's 185-day growing season.
Zone 7210 days
This variety matures in 90 days, well within Zone 7's 210-day growing season.
⚠️ Colorado Growing Challenges
⚠️Hail
⚠️Late frosts
⚠️Low humidity
⚠️Intense UV
⚠️Short season (mountains)
✓ Colorado Growing Advantages
✓Intense sunlight
✓Cool nights
✓Low disease pressure
✓Growing local markets
📊 Copra (F1) Quick Facts
Days to Maturity
90-120
Difficulty
intermediate
Season
summer
Type
OP
🎓 Colorado Extension Resources
For local, research-based growing information, visit your state's Cooperative Extension Service:
Visit Colorado Extension →📍 View Copra (F1) Guide for Other States
🌱 Other Onion Varieties for Colorado
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