When to plant in Holladay, UT
USDA Zone 7bEverything below — frost dates, hardiness zone, and what to plant when in Holladay, Utah — is derived from the closest NOAA station with complete climate normals.
Zone 7b means many perennials and even some tender shrubs overwinter in Holladay, while your frost dates still decide when annuals go out.
Frost probability
COTTONWOOD WEIR · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Holladay’s own odds, recorded at COTTONWOOD WEIR.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Jun 9 | May 13 | Apr 25 | Sep 27 | Oct 11 | Oct 27 |
| 32°F | May 30 | Apr 29 | Apr 10 | Oct 6 | Oct 22 | Nov 7 |
| 28°F | May 13 | Apr 12 | Mar 21 | Oct 17 | Nov 1 | Nov 18 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Holladay, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 13 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Holladay planting FAQ
When is the last spring frost in Holladay, UT?
Plan for the last spring frost in Holladay around April 29 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Holladay, UT?
The first fall frost in Holladay typically arrives around October 22 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Holladay in?
Holladay is in USDA hardiness zone 7b. In zone 7b, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Holladay?
There are roughly 176 frost-free days in Holladay (a moderate growing season), running from the average last frost around April 29 to the first fall frost near October 22.
When should I plant tomatoes in Holladay?
In Holladay, start tomato seeds indoors around March 4–March 18, then transplant seedlings outdoors around May 6 once the danger of frost has passed.
Never miss a window in Holladay
An email when it’s time to start seeds, transplant, and sow — timed to Holladay’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Millcreek · 3 km
- Cottonwood Heights · 5 km
- Murray · 5 km
- Midvale · 8 km
- South Salt Lake · 8 km
- Sandy · 10 km
- Taylorsville · 11 km
- Kearns · 16 km
Frost dates recorded at COTTONWOOD WEIR, 6 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Holladay, UT — Frost Dates & Zone 7b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00421759. Retrieved from https://blissgarden.com/utah/holladay.