Can You Grow Onion in Ohio?
US · USDA Zone 5b · zones 5a, 5b, 6a
Onions grow well here — plant sets or transplants in early spring for a summer harvest.
Plant zones
Ohio last frost
Ohio first frost
Days to harvest
When to plant Onions in Ohio
Start indoors
Transplant
Harvest
Dates are approximate, based on Ohio's average frost dates. Your exact yard may vary by microclimate.
About Onion
Onions are a staple crop that stores well and can be grown as sets transplants or from seed.
Growing from sets is easiest for beginners. Plant in early spring — onions are frost-tolerant. Day-length sensitive — choose short-day long-day or day-neutral varieties based on your latitude.
Gardening in Ohio
Ohio has a humid continental climate. Northern Ohio near Lake Erie is Zone 6a; inland areas are Zone 5b. Four seasons with a productive 6-month growing window.
Frequently asked questions
Can you grow Onion in Ohio?
Onions grow well here — plant sets or transplants in early spring for a summer harvest.
What zone is Ohio?
Ohio spans USDA Zone 5b (5a, 5b, 6a).
When do you plant Onions in Ohio?
Plant Onions around early April (start indoors Feb 9), harvest Jul 6 – Aug 5.