Cedar Highlands, Utah, sits in USDA hardiness zone 6b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Among the crops suited to this profile: cabbage, blackberry, california poppy, and collard greens. The site-level story — soil, sun, drainage — decides the rest.
Even in Cedar Highlands, 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 Cedar Highlands 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 Cedar Highlands — soil, climate, flood, and parcel records. How we handle your address.
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Cedar Highlands — the short answer
Cedar Highlands, Utah: USDA zone 6b, about 138 days between hard freezes, across 598 acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 23
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 8
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~138
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 598 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 6b is Cedar Highlands's average, not your lot's — a low corner or a tree line moves it. Against Cedar Highlands's 138-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Cedar Highlands
Each reading below is measured for Cedar Highlands itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredCedar Highlands 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
MeasuredCedar Highlands sits in USDA hardiness zone 6b.
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 Cedar Highlands is in
Cedar Highlands sits in the Wasatch and Uinta Mountains — EPA Level III, inside the wider Northwestern Forested Mountains. That is read at Cedar Highlands's own centroid, and it is not what its county reads: Iron County is mostly Central Basin and Range. The wider page above you is answering a different question about different ground.
What Grows in Cedar Highlands
Every plant below cleared Cedar Highlands's own zone 6b and its 138-day season. Each card opens that plant's Utah profile. How we score.
Is it too late to plant in Cedar Highlands?
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 25; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 23 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 8 — 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 Cedar Highlands
Closest first, within ~10 miles of Cedar Highlands. Listing isn't leaking, and distance isn't exposure.
- FORMER VALLEY VIEW MEDICAL CENTERUnderground Storage Tanks · 2.3 mi
- DESERT PINES AUTO RV REPAIRUnderground Storage Tanks · 2.3 mi
- SILLITOE CAR CARE CENTERUnderground Storage Tanks · 2.4 mi
- STARS FOOD STOREUnderground Storage Tanks · 2.4 mi
- KMART #9715Underground Storage Tanks · 2.4 mi
- RALLY STOP # 2Underground Storage Tanks · 2.4 mi
- SMITHS #42Underground Storage Tanks · 2.4 mi
- C-MART SHELLUnderground Storage Tanks · 2.4 mi
- SMITH'S #42Brownfields · 2.4 mi
- CEDAR CITY TRUCK SALESUnderground Storage Tanks · 2.4 mi
- K B EXPRESS #5 PHILLIPS 66Underground Storage Tanks · 2.4 mi
- TOP SPOTUnderground Storage Tanks · 2.4 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Cedar Highlands'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 Cedar Highlands.
Total Sites
214
within ~10 miles of Cedar Highlands
Risk Level
Elevated
Highest-severity
16 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Cedar Highlands
Severity Distribution
within ~10 miles of Cedar Highlands
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Cedar Highlands, two things run higher than the national average within ~10 miles of Cedar Highlands — Toxics Release Inventory (16 sites) and Nitrate (58 sites). That's not a problem with your land — it's information about it.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Cedar Highlands
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 Cedar Highlands average
Your land is one point inside Cedar Highlands
Everything above resolves to Cedar Highlands as a whole — one PHZM band and one 28°F frost record, read across 598 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 town 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 Cedar Highlands Average
Cedar Highlands Average
- ●USDA Zones 6b, averaged across Cedar Highlands
- ●One soil character for all of Cedar Highlands
- ●Frost dates read at Cedar Highlands's scale: May 23 to Oct 8
YOUR Parcel
- ✓Your exact zone, not Cedar Highlands's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Cedar Highlands
Pull a site-specific report for your exact address in Cedar Highlands, Utah — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Cedar Highlands averages can't show:
We read public map data around Cedar Highlands — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Cedar Highlands average
How we know this about Cedar Highlands
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this town’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Cedar Highlands’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 town grain anywhere on this page — there is no town-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 Cedar Highlands
When does frost risk typically end in Cedar Highlands?
The last hard freeze (28°F) in Cedar Highlands typically lands around May 23, 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 13.
When is the first frost in Cedar Highlands?
The first hard freeze (28°F) in Cedar Highlands typically arrives around Oct 8, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 24, so the watching starts about Sep 8 — about 138 days after the spring freeze cleared.
How long is the growing season in Cedar Highlands?
Measured between 28°F hard freezes, Cedar Highlands sees about 138 frost-free days — roughly May 23 through Oct 8, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Jun 13 to Sep 24, about 103 days.
Is the soil safe to grow vegetables in Cedar Highlands?
The federal record around Cedar Highlands is a meaningful one — 214 documented sites, mostly Underground Storage Tanks entries (100), the nearest Underground Storage Tanks record about 2.3 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 gardeners stretch the season in Cedar Highlands?
With about 138 frost-free days between hard freezes, Cedar Highlands 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 23 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Cedar Highlands's scale — its 6b band and its 138-day season. Your yard writes its own version of Cedar Highlands'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 Cedar Highlands’s own scale
6 of the readings below were taken at Cedar Highlands's own scale — its own ~138-day season between 28°F freezes, the 598 acres it covers and 214 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Cedar Highlands's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Cedar Highlands's own 28°F hard-freeze dates, about May 23 and Oct 8 and the ~138-day span between themNOAA 1991–2020 Climate Normals
- 214 documented contamination sites on the federal record near Cedar Highlands, the closest Underground Storage Tanks record about 2.3 miles out from the town centreFederal environmental registers
- Cedar Highlands's boundary and the 598 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~138-day seasonGrowable Ground crop-matching engine
- Cedar Highlands sits in the Wasatch and Uinta Mountains — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Cedar Highlands's 598 acres read through its county's SSURGO summaryfrom Iron County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Iron 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 Iron County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Cedar Highlands's 598 acreswhy one lot differs from the next →
- Which side of Cedar Highlands you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 598 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 2.3 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 Cedar Highlands-wide figureread your own land →
More in Utah
Wider growing context
What grows across UtahCedar Highlands sits outside our named growing regions, so Utah as a whole is its closest context here.
Nearby growing guides