When to Plant Shallot in Utah
Start Seeds Indoors
Transplant outdoors:
State
Utah
USDA Zones
4a, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
Avg Last Frost
Sunday, April 25, 2027
Cities Covered
250
Utah Planting Schedule by Zone
Utah spans 9 zones — find yours below for the most accurate dates.
| Zone | Last Frost | Start Indoors | Transplant |
|---|---|---|---|
| 4a | Saturday, May 15, 2027 | — | — |
| 5a | Monday, May 10, 2027 | — | — |
| 5b | Sunday, April 25, 2027 | — | — |
| 6a | Tuesday, April 20, 2027 | — | — |
| 6b | Thursday, April 15, 2027 | — | — |
| 7a | Saturday, April 10, 2027 | — | — |
| 7b | Monday, April 5, 2027 | — | — |
| 8a | Saturday, March 20, 2027 | — | — |
| 8b | Monday, March 15, 2027 | — | — |
Dates based on average last frost. Check your local forecast before planting.
🌿 About Shallot
Growing Shallot in Utah: Complete Guide
Shallot (Allium cepa var. aggregatum) is a warm-season crop that needs a head start indoors before Utah's last frost. Depending on your zone, Utah gardeners start seeds indoors between September 10, 2026 (Zone 4a) and November 10, 2026 (Zone 8b), then move transplants outside once their zone's last frost has passed — the zone table above has your exact dates.
Because Utah stretches across 9 USDA hardiness zones (4a, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b), planting windows can shift by as much as six to eight weeks from one end of the state to the other. Gardeners in the warmer southern zones can start earlier, while those in cooler northern zones should wait until the zone table above shows their last frost has passed.
With 90 days to maturity, Shallot needs the indoor head start that Utah's growing season requires. Starting indoors ensures you have strong transplants ready the moment outdoor conditions are right.
Shallot requires full sun and regular moisture. In the arid Southwest, intense sun and low humidity mean irrigation is essential; mulch to prevent rapid soil moisture loss.
For the most precise planting dates tailored to your exact location, enter your ZIP code on our planting calendar or use the zone table above to find the schedule for your area of Utah.
Frequently Asked Questions
When should I plant Shallot in Utah?
In Utah, start Shallot seeds indoors around null and transplant outdoors around null after your last frost. Utah spans zones 4a–8b, so dates shift by 1–4 weeks depending on where you live.
What is the last frost date in Utah?
Utah spans 9 USDA zones (4a, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b), so last frost dates vary by region. Randolph (4a) sees frost until around Saturday, May 15, 2027, while Hurricane, Ivins, Leeds (8b) is frost-free much earlier.
How long does Shallot take to grow in Utah?
Shallot takes about 90 days from transplant (or direct sow) to harvest. Starting seeds indoors in Utah gives you a head start so plants are ready to go out after the last frost.
What USDA zones does Utah cover for Shallot?
Utah includes zones 4a, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b. Shallot grows well across all of these zones with adjusted timing — use the zone table above to find the right dates for your part of the state.
When to Plant Shallot by City in Utah
Dates are based on each city's USDA zone and average last frost.
| City | Zone | Last Frost | Start Indoors | Transplant |
|---|---|---|---|---|
| Alpine | 7a | Saturday, April 10, 2027 | — | — |
| Altamont | 5b | Sunday, April 25, 2027 | — | — |
| Alton | 6a | Tuesday, April 20, 2027 | — | — |
| Altonah | 6a | Tuesday, April 20, 2027 | — | — |
| American Fork | 6a | Tuesday, April 20, 2027 | — | — |
| Aneth | 7b | Monday, April 5, 2027 | — | — |
| Annabella | 6a | Tuesday, April 20, 2027 | — | — |
| Antimony | 5b | Sunday, April 25, 2027 | — | — |
| Aurora | 6a | Tuesday, April 20, 2027 | — | — |
| Axtell | 6a | Tuesday, April 20, 2027 | — | — |
| Bear River City | 6b | Thursday, April 15, 2027 | — | — |
| Beaver | 6a | Tuesday, April 20, 2027 | — | — |
| Beryl | 5b | Sunday, April 25, 2027 | — | — |
| Bicknell | 6a | Tuesday, April 20, 2027 | — | — |
| Bingham Canyon | 7a | Saturday, April 10, 2027 | — | — |
| Blanding | 7a | Saturday, April 10, 2027 | — | — |
| Bluebell | 5b | Sunday, April 25, 2027 | — | — |
| Bluff | 7a | Saturday, April 10, 2027 | — | — |
| Bonanza | 6a | Tuesday, April 20, 2027 | — | — |
| Boulder | 7a | Saturday, April 10, 2027 | — | — |
| Bountiful | 6b | Thursday, April 15, 2027 | — | — |
| Brian Head | 6a | Tuesday, April 20, 2027 | — | — |
| Brigham City | 6b | Thursday, April 15, 2027 | — | — |
| Bryce | 6a | Tuesday, April 20, 2027 | — | — |
| Cache Junction | 6a | Tuesday, April 20, 2027 | — | — |
| Cannonville | 6a | Tuesday, April 20, 2027 | — | — |
| Castle Dale | 6a | Tuesday, April 20, 2027 | — | — |
| Cedar City | 6b | Thursday, April 15, 2027 | — | — |
| Cedar Valley | 6a | Tuesday, April 20, 2027 | — | — |
| Centerfield | 6a | Tuesday, April 20, 2027 | — | — |
| Centerville | 6b | Thursday, April 15, 2027 | — | — |
| Central | 6b | Thursday, April 15, 2027 | — | — |
| Chester | 5b | Sunday, April 25, 2027 | — | — |
| Circleville | 5b | Sunday, April 25, 2027 | — | — |
| Cisco | 6b | Thursday, April 15, 2027 | — | — |
| Clarkston | 6a | Tuesday, April 20, 2027 | — | — |
| Clawson | 6a | Tuesday, April 20, 2027 | — | — |
| Clearfield | 7a | Saturday, April 10, 2027 | — | — |
| Cleveland | 6a | Tuesday, April 20, 2027 | — | — |
| Coalville | 5b | Sunday, April 25, 2027 | — | — |
| Collinston | 6a | Tuesday, April 20, 2027 | — | — |
| Corinne | 6b | Thursday, April 15, 2027 | — | — |
| Cornish | 6a | Tuesday, April 20, 2027 | — | — |
| Croydon | 6a | Tuesday, April 20, 2027 | — | — |
| Dammeron Valley | 8a | Saturday, March 20, 2027 | — | — |
| Delta | 6a | Tuesday, April 20, 2027 | — | — |
| Deweyville | 6b | Thursday, April 15, 2027 | — | — |
| Draper | 7a | Saturday, April 10, 2027 | — | — |
| Duchesne | 6a | Tuesday, April 20, 2027 | — | — |
| Duck Creek Village | 6a | Tuesday, April 20, 2027 | — | — |
| Dugway | 6b | Thursday, April 15, 2027 | — | — |
| Dutch John | 5b | Sunday, April 25, 2027 | — | — |
| Eagle Mountain | 6b | Thursday, April 15, 2027 | — | — |
| East Carbon | 6b | Thursday, April 15, 2027 | — | — |
| Echo | 6a | Tuesday, April 20, 2027 | — | — |
| Eden | 6a | Tuesday, April 20, 2027 | — | — |
| Elberta | 6b | Thursday, April 15, 2027 | — | — |
| Elmo | 6a | Tuesday, April 20, 2027 | — | — |
| Elsinore | 6a | Tuesday, April 20, 2027 | — | — |
| Emery | 6b | Thursday, April 15, 2027 | — | — |
Showing 60 of 250 cities. Enter your ZIP on the planting calendar for your exact dates.