West Valley City, Utah, sits in USDA hardiness zone 7b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
On paper, cabbage, prickly pear, california poppy, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in West Valley City, no two yards are alike.
A low spot, a south-facing slope, or a stand of trees moves the frost date and sun across a single West Valley City lot. Enter your address and we'll score 1,086 plants against your land's actual soil, sun, and frost.
We read public map data around West Valley City — soil, climate, flood, and parcel records. How we handle your address.
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West Valley City — the short answer
West Valley City, Utah: USDA zone 7b, about 225 days between hard freezes, across 23K acres of city.
- USDA zone
- 7b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 26
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 6
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~225
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 23K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. Hard-freeze dates are this town’s own 28°F normals: light frosts run a few weeks past them, and tender transplants usually wait 2–3 weeks after the last hard freeze.
Hardiness Zone Range
Zone 7b is West Valley City's average, not your lot's — a low corner or a tree line moves it. Against West Valley City's 225-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in West Valley City
Each reading below is measured for West Valley City itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWest Valley City runs about 225 days between hard freezes — a long growing season.
There is slack for succession plantings and slow-finishing crops: many vegetables can be sown twice, and the heat-lovers have time to ripen fully.
Plan a second sowing of quick crops after the first comes out, and use the fall window most gardeners let sit idle.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredWest Valley City sits in USDA hardiness zone 7b.
The zone sets which perennials, shrubs, and fruit trees live through an average winter here — a plant rated for a colder zone is a safe bet, one rated warmer needs winter protection or gets treated as an annual.
Match perennials and fruit to the zone before you buy, so nothing you plant is a gamble against the cold.
USDA PHZM 2023
The kind of country West Valley City is in
West Valley City sits in the Central Basin and Range — EPA Level III, inside the wider North American Deserts. That is read at West Valley City's own centroid rather than borrowed from Salt Lake County.
What Grows in West Valley City
Every plant below cleared West Valley City's own zone 7b and its 225-day season. Each card opens that plant's Utah profile. How we score.
Is it too late to plant in West Valley City?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Feb 26; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 26 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 6 — long-season crops need about 90 days of runway, quick greens only 30. There is slack in a calendar like this — late plantings, second rounds of favorites, and a fall bench that keeps beds working.
What's on the federal record near West Valley City
Closest first, within ~10 miles of West Valley City. Listing isn't leaking, and distance isn't exposure.
- (C- 1- 2)36abc- 1Nitrate · 2400 ft
- 7-ELEVEN 1890-12925Underground Storage Tanks · 0.5 mi
- HOLIDAY OIL #18Underground Storage Tanks · 0.5 mi
- (C- 1- 2)36abb- 5Nitrate · 0.5 mi
- THE SOUTHLAND CORPORATIONUnderground Storage Tanks · 0.6 mi
- A & P TIREUnderground Storage Tanks · 0.6 mi
- 7-ELEVEN 1851-29176Underground Storage Tanks · 0.6 mi
- 7-ELEVEN 1851-26838Underground Storage Tanks · 0.6 mi
- CIRCLE K STORE 1836Underground Storage Tanks · 0.7 mi
- (C- 2- 2) 1aab- 1Nitrate · 0.7 mi
- BYRONS BODY SHOPBrownfields · 0.7 mi
- (C- 1- 2)35ada- 2Nitrate · 0.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from West Valley City's center, not your beds. Run your own address for what's upwind of you specifically.
Environmental Intelligence
The counts behind that headline — every source type on the record near West Valley City.
Total Sites
3,803
within ~10 miles of West Valley City
Risk Level
High
Highest-severity
56 Superfund sites
Sources Checked
within ~10 miles of West Valley City
Severity Distribution
within ~10 miles of West Valley City
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around West Valley City, Superfund runs higher than the national average — 56 sites within ~10 miles of West Valley City. That's not a problem with your land — it's information about it.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in West Valley City
Get exact proximity distances to contamination sources for your specific parcel — plus soil, sun, drainage, and 1,086 plant recommendations.
25+ data sources read at your address, not the West Valley City average
Your land is one point inside West Valley City
Everything above resolves to West Valley City as a whole — one PHZM band and one 28°F frost record, read across 23K acres. Your parcel is one point inside that footprint. Slope, tree cover, a low spot that pools cold air, and what is in the soil are all resolved at the address, and none of them are visible at city scale. That is the honest boundary of this page, and the reason the next step is a reading of your own ground rather than a better local average.
Your Lot vs the West Valley City Average
West Valley City Average
- ●USDA Zones 7b, averaged across West Valley City
- ●One soil character for all of West Valley City
- ●Frost dates read at West Valley City's scale: Mar 26 to Nov 6
YOUR Parcel
- ✓Your exact zone, not West Valley City's 7b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in West Valley City
Pull a site-specific report for your exact address in West Valley City, Utah — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that West Valley City averages can't show:
We read public map data around West Valley City — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the West Valley City average
How we know this about West Valley City
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at West Valley City’s own record; boundaries and acreage from US Census TIGER/Line 2025; the contamination records from the federal sources named in their beats above. Soil is not read at city grain anywhere on this page — there is no city-resolution survey in our data, which is why you will find no soil grid here rather than a statewide one wearing a local label. The resolution ledger below names every figure this page inherited.
Common questions about West Valley City
When does frost risk typically end in West Valley City?
The last hard freeze (28°F) in West Valley City typically lands around Mar 26, per NOAA 1991–2020 climate normals — earlier than the light-frost dates most charts quote. That marks the hard freeze, not the last light frost — lighter frosts keep biting past it, which is why tender transplants here wait until about Apr 16.
When is the first frost in West Valley City?
The first hard freeze (28°F) in West Valley City typically arrives around Nov 6, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 23, so the watching starts about Oct 7 — about 225 days after the spring freeze cleared.
How long is the growing season in West Valley City?
Measured between 28°F hard freezes, West Valley City sees about 225 frost-free days — roughly Mar 26 through Nov 6, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 16 to Oct 23, about 190 days.
Is the soil safe to grow vegetables in West Valley City?
The federal record around West Valley City runs heavier than most — 3,803 documented sites, mostly Underground Storage Tanks entries (1,832), the nearest Nitrate record about 0.5 miles out — so test the soil before planting food in the ground, and raised beds with clean imported soil grow well in the meantime. Even here, proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what's recorded and where.
How do I protect my plants from frost in West Valley City?
From about Oct 7 the job here turns from planting to protecting — the last start even a 30-day crop can finish. As the season closes around the first 28°F hard freeze near Nov 6 (NOAA 1991–2020 climate normals), three moves buy time: row cover or an old sheet over tender plants on still, clear nights; water the soil the afternoon before a freeze, so it holds warmth overnight; and harvest tomatoes, peppers and basil before Nov 6. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at West Valley City's scale — its 7b band and its 225-day season. Your yard writes its own version of West Valley City's numbers: we read soil, sun, drainage and frost at your exact address. Try it for 14 days — no card required.
What this page reads at West Valley City’s own scale
6 of the readings below were taken at West Valley City's own scale — its own ~225-day season between 28°F freezes, the 22,929 acres it covers and 3,803 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- West Valley City's own USDA hardiness band, zones 7bUSDA PHZM 2023
- West Valley City's own 28°F hard-freeze dates, about Mar 26 and Nov 6 and the ~225-day span between themNOAA 1991–2020 Climate Normals
- 3,803 documented contamination sites on the federal record near West Valley City, the closest Nitrate record about 0.5 miles out from the town centreFederal environmental registers
- West Valley City's boundary and the 22,929 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7b and a ~225-day seasonGrowable Ground crop-matching engine
- The ecoregion at West Valley City's own centroid, the Central Basin and RangeUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so West Valley City's 22,929 acres read through its county's SSURGO summaryfrom Salt Lake County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Salt Lake County
- The growing challenges every Utah grower plans around — written at state scale, so they stay on the state guidefrom Utah
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Salt Lake County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among West Valley City's 22,929 acreswhy one lot differs from the next →
- Which side of West Valley City you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 22,929 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 0.5 miles out, measured from the town centrehow we read the record →
- Where cold air settles, which slopes face the sun, and which way the wind runs on your own ground — measured at your address, and averaged away by any West Valley City-wide figureread your own land →
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