Can You Grow Onion in Utah?
US · USDA Zone 6a · zones 4a, 4b, 5a, 5b, 6a, 6b, 7a
Onions grow well here — plant sets or transplants in early spring for a summer harvest.
Plant zones
Utah last frost
Utah first frost
Days to harvest
When to plant Onions in Utah
Start indoors
Transplant
Harvest
Dates are approximate, based on Utah'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 Utah
Utah has an arid continental climate. Salt Lake City is Zone 6b-7a; southern Utah is Zone 7-8; mountains are Zone 4-5. Low humidity and alkaline soils require irrigation and soil amendment.
Frequently asked questions
Can you grow Onion in Utah?
Onions grow well here — plant sets or transplants in early spring for a summer harvest.
What zone is Utah?
Utah spans USDA Zone 6a (4a, 4b, 5a, 5b, 6a, 6b, 7a).
When do you plant Onions in Utah?
Plant Onions around early April (start indoors Feb 3), harvest Jun 30 – Jul 30.