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Can You Grow Onion in South Dakota?
US · USDA Zone 4b · zones 3b, 4a, 4b, 5a, 5b
Onions grow well here — plant sets or transplants in early spring for a summer harvest.
Plant zones
South Dakota last frost
South Dakota first frost
Days to harvest
When to plant Onions in South Dakota
Start indoors
Transplant
Harvest
Dates are approximate, based on South Dakota'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 South Dakota
South Dakota has a continental climate with cold winters and warm summers. Eastern South Dakota is Zone 4b-5a; western South Dakota is colder. Short growing seasons.
Frequently asked questions
Can you grow Onion in South Dakota?
Onions grow well here — plant sets or transplants in early spring for a summer harvest.
What zone is South Dakota?
South Dakota spans USDA Zone 4b (3b, 4a, 4b, 5a, 5b).
When do you plant Onions in South Dakota?
Plant Onions around mid-April (start indoors Feb 17), harvest Jul 14 – Aug 13.