Moroni, Utah, sits in USDA hardiness zone 5b — a zone band wide enough that plant choice, not possibility, is the interesting question.
Reliable performers under these conditions include cabbage, cranberry, lavender, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Moroni, 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 Moroni 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 Moroni — soil, climate, flood, and parcel records. How we handle your address.
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Moroni — the short answer
Moroni, Utah: USDA zone 5b, about 138 days between hard freezes, across 682 acres of city.
- USDA zone
- 5b
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 18
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 3
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~138
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 682 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 Moroni's average, not your lot's — a low corner or a tree line moves it. Against Moroni's 138-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Moroni
Each reading below is measured for Moroni itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredMoroni runs about 138 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
MeasuredMoroni 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 Moroni is in
Moroni sits in the Wasatch and Uinta Mountains — EPA Level III, inside the wider Northwestern Forested Mountains. That is read at Moroni's own centroid rather than borrowed from Sanpete County.
What Grows in Moroni
Every plant below cleared Moroni's own zone 5b and its 138-day season. Each card opens that plant's Utah profile. How we score.
Is it too late to plant in Moroni?
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 Apr 20; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 18 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 3 — long-season crops need about 90 days of runway, quick greens only 30. Even here the calendar’s edges hold value: thirty-day greens late in the window, then garlic and a rested bed for spring.
What's on the federal record near Moroni
Closest first, within ~10 miles of Moroni. Listing isn't leaking, and distance isn't exposure.
- MORONI VALUE MART SINCLAIRUnderground Storage Tanks · 1100 ft
- MORONI UTAH DAIRYUnderground Storage Tanks · 2000 ft
- SANPETE VALLEY CONOCOUnderground Storage Tanks · 2100 ft
- MORONI TURKEY PROCESSINGToxics Release Inventory · 0.8 mi
- MORONI TURKEY PROCESSINGBrownfields · 0.8 mi
- (D-15- 3) 8cda- 3Nitrate · 1.7 mi
- FEED MILLToxics Release Inventory · 1.8 mi
- (D-15- 2)12aad- 1Nitrate · 3.1 mi
- (D-15- 3)26ccd- 1Nitrate · 3.6 mi
- SUNDERLAND DAIRY INC.CAFO · 3.7 mi
- TURKEY VALLEY FARMCAFO · 3.7 mi
- J & F COUNTRY STOREUnderground Storage Tanks · 3.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Moroni'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 Moroni.
Total Sites
65
within ~10 miles of Moroni
Risk Level
Moderate
Highest-severity
2 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Moroni
Severity Distribution
within ~10 miles of Moroni
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Moroni, two things run higher than the national average within ~10 miles of Moroni — CAFO (4 sites) and Nitrate (30 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
CAFO: CAFOs pose a different contamination profile than chemical sources.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Moroni
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 Moroni average
Your land is one point inside Moroni
Everything above resolves to Moroni as a whole — one PHZM band and one 28°F frost record, read across 682 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 Moroni Average
Moroni Average
- ●USDA Zones 5b, averaged across Moroni
- ●One soil character for all of Moroni
- ●Frost dates read at Moroni's scale: May 18 to Oct 3
YOUR Parcel
- ✓Your exact zone, not Moroni's 5b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Moroni
Pull a site-specific report for your exact address in Moroni, Utah — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Moroni averages can't show:
We read public map data around Moroni — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Moroni average
How we know this about Moroni
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 Moroni’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 Moroni
When does frost risk typically end in Moroni?
The last hard freeze (28°F) in Moroni typically lands around May 18, 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 8.
When is the first frost in Moroni?
The first hard freeze (28°F) in Moroni typically arrives around Oct 3, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 19, so the watching starts about Sep 3 — about 138 days after the spring freeze cleared.
How long is the growing season in Moroni?
Measured between 28°F hard freezes, Moroni sees about 138 frost-free days — roughly May 18 through Oct 3, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Jun 8 to Sep 19, about 103 days.
Is the soil safe to grow vegetables in Moroni?
The federal record around Moroni shows 65 documented sites, mostly Nitrate entries (30), the nearest Underground Storage Tanks record about 0.2 miles out — a typical footprint for a growing area, and proximity to a documented site is information, not a diagnosis of any one yard. It's worth seeing which recorded sites sit closest to where you grow, and testing the soil before new food beds near any of them.
How do gardeners stretch the season in Moroni?
With about 138 frost-free days between hard freezes, Moroni 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 166 to 194 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the May 18 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Moroni's scale — its 5b band and its 138-day season. Your yard writes its own version of Moroni'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 Moroni’s own scale
6 of the readings below were taken at Moroni's own scale — its own ~138-day season between 28°F freezes, the 682 acres it covers and 65 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Moroni's own USDA hardiness band, zones 5bUSDA PHZM 2023
- Moroni's own 28°F hard-freeze dates, about May 18 and Oct 3 and the ~138-day span between themNOAA 1991–2020 Climate Normals
- 65 documented contamination sites on the federal record near Moroni, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Moroni's boundary and the 682 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5b and a ~138-day seasonGrowable Ground crop-matching engine
- The ecoregion at Moroni'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 Moroni's 682 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 Moroni's 682 acreswhy one lot differs from the next →
- Which side of Moroni you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 682 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.2 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 Moroni-wide figureread your own land →
More in Utah
Wider growing context
What grows across UtahMoroni sits outside our named growing regions, so Utah as a whole is its closest context here.
Nearby growing guides