Fountain Green, Utah, sits in USDA hardiness zone 5b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
These conditions suit cabbage, cranberry, lavender, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Fountain Green, 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 Fountain Green 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 Fountain Green — soil, climate, flood, and parcel records. How we handle your address.
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Fountain Green — the short answer
Fountain Green, Utah: USDA zone 5b, about 121 days between hard freezes, across 799 acres of city.
- USDA zone
- 5b
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 27
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Sep 25
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~121
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 799 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 5b is Fountain Green's average, not your lot's — a low corner or a tree line moves it. Against Fountain Green's 121-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Fountain Green
Each reading below is measured for Fountain Green itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredFountain Green runs about 121 days between hard freezes — a short growing season.
Long-maturing crops like melons, sweet potatoes, and winter squash can run out of runway before the first hard freeze, ripening late or not at all.
Lead with fast-maturing varieties, and stretch the season on both ends with cold frames, low tunnels, or a greenhouse.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredFountain Green sits in USDA hardiness zone 5b.
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 Fountain Green is in
Fountain Green sits in the Wasatch and Uinta Mountains — EPA Level III, inside the wider Northwestern Forested Mountains. That is read at Fountain Green's own centroid rather than borrowed from Sanpete County.
What Grows in Fountain Green
Every plant below cleared Fountain Green's own zone 5b and its 121-day season. Each card opens that plant's Utah profile. How we score.
Is it too late to plant in Fountain Green?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Apr 29; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 27 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Sep 25 — long-season crops need about 90 days of runway, quick greens only 30. When the window is tight, the fall moves are quick ones — baby greens, radishes, and garlic set for next season.
What's on the federal record near Fountain Green
Closest first, within ~10 miles of Fountain Green. Listing isn't leaking, and distance isn't exposure.
- BECKS AUTO SERVICE LLCUnderground Storage Tanks · 2000 ft
- CUZ-A-EWEUnderground Storage Tanks · 0.5 mi
- (D-14- 3) 7abb- 1Nitrate · 0.7 mi
- (D-14- 3)20cbb- 1Nitrate · 3.0 mi
- (D-15- 2)12aad- 1Nitrate · 6.6 mi
- (D-15- 3) 8cda- 3Nitrate · 7.4 mi
- MORONI UTAH DAIRYUnderground Storage Tanks · 7.6 mi
- MORONI VALUE MART SINCLAIRUnderground Storage Tanks · 7.7 mi
- SANPETE VALLEY CONOCOUnderground Storage Tanks · 7.9 mi
- MORONI TURKEY PROCESSINGBrownfields · 7.9 mi
- MORONI TURKEY PROCESSINGToxics Release Inventory · 7.9 mi
- FEED MILLToxics Release Inventory · 9.3 mi
2 more sites are on the record inside the same radius. See them on the map
Measured from Fountain Green'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 Fountain Green.
Total Sites
18
within ~10 miles of Fountain Green
Risk Level
Low
Highest-severity
2 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Fountain Green
Severity Distribution
within ~10 miles of Fountain Green
Highest-Severity Sites
Know Before You Grow
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •TRI facilities report what they release. Check the wind — downwind beds catch more of it.
Check your specific parcel in Fountain Green
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 Fountain Green average
Your land is one point inside Fountain Green
Everything above resolves to Fountain Green as a whole — one PHZM band and one 28°F frost record, read across 799 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 Fountain Green Average
Fountain Green Average
- ●USDA Zones 5b, averaged across Fountain Green
- ●One soil character for all of Fountain Green
- ●Frost dates read at Fountain Green's scale: May 27 to Sep 25
YOUR Parcel
- ✓Your exact zone, not Fountain Green's 5b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Fountain Green
Pull a site-specific report for your exact address in Fountain Green, Utah — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Fountain Green averages can't show:
We read public map data around Fountain Green — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Fountain Green average
How we know this about Fountain Green
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 Fountain Green’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 Fountain Green
When does frost risk typically end in Fountain Green?
The last hard freeze (28°F) in Fountain Green typically lands around May 27, 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 Jun 17.
When is the first frost in Fountain Green?
The first hard freeze (28°F) in Fountain Green typically arrives around Sep 25, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 11, so the watching starts about Aug 26 — about 121 days after the spring freeze cleared.
How long is the growing season in Fountain Green?
Measured between 28°F hard freezes, Fountain Green sees about 121 frost-free days — roughly May 27 through Sep 25, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Jun 17 to Sep 11, about 86 days.
Is the soil safe to grow vegetables in Fountain Green?
The federal record around Fountain Green is light — 18 documented sites across the 9 federal source types we checked, mostly Nitrate entries (8), the nearest Underground Storage Tanks record about 0.4 miles out — and proximity to a documented site is information, not a diagnosis of any one yard. Growing food here starts from a strong position; a soil test before new food beds settles any site-specific question.
How do gardeners stretch the season in Fountain Green?
With about 121 frost-free days between hard freezes, Fountain Green rewards the classic extension moves: floating row cover buys roughly two to four extra weeks at each shoulder — on this season that is a working window nearer 149 to 177 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the May 27 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Fountain Green's scale — its 5b band and its 121-day season. Your yard writes its own version of Fountain Green'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 Fountain Green’s own scale
6 of the readings below were taken at Fountain Green's own scale — its own ~121-day season between 28°F freezes, the 799 acres it covers and 18 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Fountain Green's own USDA hardiness band, zones 5bUSDA PHZM 2023
- Fountain Green's own 28°F hard-freeze dates, about May 27 and Sep 25 and the ~121-day span between themNOAA 1991–2020 Climate Normals
- 18 documented contamination sites on the federal record near Fountain Green, the closest Underground Storage Tanks record about 0.4 miles out from the town centreFederal environmental registers
- Fountain Green's boundary and the 799 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5b and a ~121-day seasonGrowable Ground crop-matching engine
- The ecoregion at Fountain Green's own centroid, the Wasatch and Uinta MountainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Fountain Green's 799 acres read through its county's SSURGO summaryfrom Sanpete County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Sanpete 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 Sanpete County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Fountain Green's 799 acreswhy one lot differs from the next →
- Which side of Fountain Green you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 799 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 Fountain Green-wide figureread your own land →
More in Utah
Wider growing context
What grows across UtahFountain Green sits outside our named growing regions, so Utah as a whole is its closest context here.
Nearby growing guides