Summit Park, Utah, sits in USDA hardiness zone 5b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Growers here do well with cabbage, cranberry, lavender, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Summit Park, 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 Summit Park 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 Summit Park — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Summit Park — the short answer
Summit Park, Utah: USDA zone 5b, about 131 days between hard freezes, across 9K acres of town.
- USDA zone
- 5b
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 21
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Sep 29
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~131
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 9K 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 Summit Park's average, not your lot's — a low corner or a tree line moves it. Against Summit Park's 131-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Summit Park
Each reading below is measured for Summit Park itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredSummit Park runs about 131 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
MeasuredSummit Park 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 Summit Park is in
Summit Park sits in the Wasatch and Uinta Mountains — EPA Level III, inside the wider Northwestern Forested Mountains. That is read at Summit Park's own centroid rather than borrowed from Summit County.
What Grows in Summit Park
Every plant below cleared Summit Park's own zone 5b and its 131-day season. Each card opens that plant's Utah profile. How we score.
Is it too late to plant in Summit Park?
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 23; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 21 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Sep 29 — 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.
Documented around Summit Park
Spotted lanternfly documented 21 miles from Summit Park, first recorded 2020. What to watch for.
What's on the federal record near Summit Park
Closest first, within ~10 miles of Summit Park. Listing isn't leaking, and distance isn't exposure.
- (D- 1- 3)10aab- 1Nitrate · 1.0 mi
- DIME SAVINGS OF NEW YORKUnderground Storage Tanks · 1.1 mi
- (D- 1- 3)12cbd- 1Nitrate · 1.2 mi
- BELL'S JEREMY STORE PHILLIPS 66Underground Storage Tanks · 1.2 mi
- SEWAGE TREATMENT PLANTUnderground Storage Tanks · 1.3 mi
- JEREMY RANCH PUMP STATIONUnderground Storage Tanks · 1.5 mi
- JEREMY GOLF MAINT. BUILDINGUnderground Storage Tanks · 1.5 mi
- 1ST STOP SVC LLCUnderground Storage Tanks · 1.6 mi
- CRANDALL FORD MERCURYBrownfields · 1.8 mi
- W. MEEKS WIRTHLINUnderground Storage Tanks · 2.4 mi
- WAL-MART SUPERCENTER 1827Brownfields · 2.4 mi
- TRAVEL CLEAN CAR WASHUnderground Storage Tanks · 2.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Summit Park'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 Summit Park.
Sources Checked
within ~10 miles of Summit Park
Severity Distribution
within ~10 miles of Summit Park
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Summit Park, two things run higher than the national average within ~10 miles of Summit Park — Mining (236 sites) and Superfund (10 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Mining: Mining sites — both historic and active — can leach heavy metals (arsenic, lead, cadmium, mercury) into soil and water for centuries after operations cease.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Test soil for heavy metals (lead, arsenic, cadmium, mercury) — this is essential near any mining site.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in Summit Park
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 Summit Park average
Your land is one point inside Summit Park
Everything above resolves to Summit Park as a whole — one PHZM band and one 28°F frost record, read across 9K 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 Summit Park Average
Summit Park Average
- ●USDA Zones 5b, averaged across Summit Park
- ●One soil character for all of Summit Park
- ●Frost dates read at Summit Park's scale: May 21 to Sep 29
YOUR Parcel
- ✓Your exact zone, not Summit Park's 5b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Summit Park
Pull a site-specific report for your exact address in Summit Park, Utah — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Summit Park averages can't show:
We read public map data around Summit Park — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Summit Park average
How we know this about Summit Park
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 Summit Park’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 Summit Park
When does frost risk typically end in Summit Park?
The last hard freeze (28°F) in Summit Park typically lands around May 21, 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 11.
When is the first frost in Summit Park?
The first hard freeze (28°F) in Summit Park typically arrives around Sep 29, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 15, so the watching starts about Aug 30 — about 131 days after the spring freeze cleared.
How long is the growing season in Summit Park?
Measured between 28°F hard freezes, Summit Park sees about 131 frost-free days — roughly May 21 through Sep 29, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Jun 11 to Sep 15, about 96 days.
Is the soil safe to grow vegetables in Summit Park?
The federal record around Summit Park runs heavier than most — 361 documented sites, mostly Mining entries (236), the nearest Nitrate record about 1.0 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 gardeners stretch the season in Summit Park?
With about 131 frost-free days between hard freezes, Summit Park 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 159 to 187 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the May 21 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Summit Park's scale — its 5b band and its 131-day season. Your yard writes its own version of Summit Park'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 Summit Park’s own scale
7 of the readings below were taken at Summit Park's own scale — its own ~131-day season between 28°F freezes, the 8,648 acres it covers and 361 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Summit Park's own USDA hardiness band, zones 5bUSDA PHZM 2023
- Summit Park's own 28°F hard-freeze dates, about May 21 and Sep 29 and the ~131-day span between themNOAA 1991–2020 Climate Normals
- 361 documented contamination sites on the federal record near Summit Park, the closest Nitrate record about 1.0 miles out from the town centreFederal environmental registers
- Summit Park's boundary and the 8,648 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5b and a ~131-day seasonGrowable Ground crop-matching engine
- The ecoregion at Summit Park's own centroid, the Wasatch and Uinta MountainsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Summit Parklydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Summit Park's 8,648 acres read through its county's SSURGO summaryfrom Summit County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Summit 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 Summit County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Summit Park's 8,648 acreswhy one lot differs from the next →
- Which side of Summit Park you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 8,648 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 1.0 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 Summit Park-wide figureread your own land →