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Can You Grow Onion in South Carolina?
US · USDA Zone 8a · zones 7a, 7b, 8a, 8b
Onions grow well here — plant sets or transplants in early spring for a summer harvest.
Plant zones
South Carolina last frost
South Carolina first frost
Days to harvest
When to plant Onions in South Carolina
Start indoors
Transplant
Harvest
Dates are approximate, based on South Carolina'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 Carolina
South Carolina has a humid subtropical climate with long hot summers and mild winters. The Upstate is Zone 7a-7b; the coast is Zone 8a-8b. Two growing seasons are standard.
Frequently asked questions
Can you grow Onion in South Carolina?
Onions grow well here — plant sets or transplants in early spring for a summer harvest.
What zone is South Carolina?
South Carolina spans USDA Zone 8a (7a, 7b, 8a, 8b).
When do you plant Onions in South Carolina?
Plant Onions around mid-February (start indoors Jan 1), harvest May 16 – Jun 15.