Home › Onion › Grow in Oklahoma

Can You Grow Onion in Oklahoma?

US · USDA Zone 7a · zones 6a, 6b, 7a, 7b

Grows well here

Onions grow well here — plant sets or transplants in early spring for a summer harvest.

Plant zones

2a–9b

Oklahoma last frost

early March

Oklahoma first frost

late November

Days to harvest

90–120 days

When to plant Onions in Oklahoma

Start indoors

Jan 10

Transplant

Mar 7

Harvest

Jun 5 – Jul 5

Dates are approximate, based on Oklahoma'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.

Full onion growing guide →

Gardening in Oklahoma

Oklahoma ranges from Zone 6a in the Panhandle to Zone 7b in the southeast. Hot summers and mild winters. Long growing season for warm-season crops.

See what grows well in Oklahoma →

Frequently asked questions

Can you grow Onion in Oklahoma?

Onions grow well here — plant sets or transplants in early spring for a summer harvest.

What zone is Oklahoma?

Oklahoma spans USDA Zone 7a (6a, 6b, 7a, 7b).

When do you plant Onions in Oklahoma?

Plant Onions around early March (start indoors Jan 10), harvest Jun 5 – Jul 5.