Spanish Fork, Utah, sits in USDA hardiness zone 7a — a zone band wide enough that plant choice, not possibility, is the interesting question.
A short list that earns its place here — cabbage, pawpaw, california poppy, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Spanish Fork, 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 Spanish Fork 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 Spanish Fork — soil, climate, flood, and parcel records. How we handle your address.
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Spanish Fork — the short answer
Spanish Fork, Utah: USDA zone 7a, about 202 days between hard freezes, across 11K acres of city.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 8
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 27
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~202
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 11K 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 7a is Spanish Fork's average, not your lot's — a low corner or a tree line moves it. Against Spanish Fork's 202-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Spanish Fork
Each reading below is measured for Spanish Fork itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredSpanish Fork runs about 202 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
MeasuredSpanish Fork sits in USDA hardiness zone 7a.
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 Spanish Fork is in
Spanish Fork sits in the Central Basin and Range — EPA Level III, inside the wider North American Deserts. That is read at Spanish Fork's own centroid, and it is not what its county reads: Utah County is mostly Wasatch and Uinta Mountains. The wider page above you is answering a different question about different ground.
What Grows in Spanish Fork
Every plant below cleared Spanish Fork's own zone 7a and its 202-day season. Each card opens that plant's Utah profile. How we score.
Is it too late to plant in Spanish Fork?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Mar 11; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 8 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 27 — long-season crops need about 90 days of runway, quick greens only 30. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
What's on the federal record near Spanish Fork
Closest first, within ~10 miles of Spanish Fork. Listing isn't leaking, and distance isn't exposure.
- MACEY'S SPANISH FORK #0998Underground Storage Tanks · 2300 ft
- S & S 66Underground Storage Tanks · 2500 ft
- U.S.WEST 671514Underground Storage Tanks · 0.6 mi
- EXPRESSWAY LUBEUnderground Storage Tanks · 0.6 mi
- FAST GAS #7Underground Storage Tanks · 0.6 mi
- SPANISH FORK ARMORYUnderground Storage Tanks · 0.6 mi
- KMART NUMBER 7425Brownfields · 0.6 mi
- GUYS BIKE SHOPUnderground Storage Tanks · 0.6 mi
- KMART #7425Underground Storage Tanks · 0.6 mi
- FOOD 4 LESSUnderground Storage Tanks · 0.6 mi
- SMITH AUTO CO.Underground Storage Tanks · 0.6 mi
- KEN'S AUTO BODYUnderground Storage Tanks · 0.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Spanish Fork'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 Spanish Fork.
Total Sites
588
within ~10 miles of Spanish Fork
Risk Level
Elevated
Highest-severity
6 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Spanish Fork
Severity Distribution
within ~10 miles of Spanish Fork
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Spanish Fork, PFAS runs higher than the national average — 5 sites within ~10 miles of Spanish Fork. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check your specific parcel in Spanish Fork
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 Spanish Fork average
Your land is one point inside Spanish Fork
Everything above resolves to Spanish Fork as a whole — one PHZM band and one 28°F frost record, read across 11K 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 Spanish Fork Average
Spanish Fork Average
- ●USDA Zones 7a, averaged across Spanish Fork
- ●One soil character for all of Spanish Fork
- ●Frost dates read at Spanish Fork's scale: Apr 8 to Oct 27
YOUR Parcel
- ✓Your exact zone, not Spanish Fork's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Spanish Fork
Pull a site-specific report for your exact address in Spanish Fork, Utah — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Spanish Fork averages can't show:
We read public map data around Spanish Fork — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Spanish Fork average
How we know this about Spanish Fork
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 Spanish Fork’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 Spanish Fork
When does frost risk typically end in Spanish Fork?
The last hard freeze (28°F) in Spanish Fork typically lands around Apr 8, 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 29.
When is the first frost in Spanish Fork?
The first hard freeze (28°F) in Spanish Fork typically arrives around Oct 27, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 13, so the watching starts about Sep 27 — about 202 days after the spring freeze cleared.
How long is the growing season in Spanish Fork?
Measured between 28°F hard freezes, Spanish Fork sees about 202 frost-free days — roughly Apr 8 through Oct 27, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 29 to Oct 13, about 167 days.
Is the soil safe to grow vegetables in Spanish Fork?
The federal record around Spanish Fork is a meaningful one — 588 documented sites, mostly Underground Storage Tanks entries (322), the nearest Underground Storage Tanks record about 0.4 miles out — so a soil test before new food beds is a sensible precaution here, not a reason to hold back from growing. Remember that proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what sits where.
How do I protect my plants from frost in Spanish Fork?
From about Sep 27 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 Oct 27 (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 Oct 27. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Spanish Fork's scale — its 7a band and its 202-day season. Your yard writes its own version of Spanish Fork'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 Spanish Fork’s own scale
6 of the readings below were taken at Spanish Fork's own scale — its own ~202-day season between 28°F freezes, the 11,377 acres it covers and 588 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Spanish Fork's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Spanish Fork's own 28°F hard-freeze dates, about Apr 8 and Oct 27 and the ~202-day span between themNOAA 1991–2020 Climate Normals
- 588 documented contamination sites on the federal record near Spanish Fork, the closest Underground Storage Tanks record about 0.4 miles out from the town centreFederal environmental registers
- Spanish Fork's boundary and the 11,377 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~202-day seasonGrowable Ground crop-matching engine
- Spanish Fork sits in the Central Basin and Range — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Spanish Fork's 11,377 acres read through its county's SSURGO summaryfrom Utah County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Utah 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 Utah County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Spanish Fork's 11,377 acreswhy one lot differs from the next →
- Which side of Spanish Fork you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 11,377 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.4 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 Spanish Fork-wide figureread your own land →
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