Antelope Hills, Wyoming, sits in USDA hardiness zone 5a — a zone band wide enough that plant choice, not possibility, is the interesting question.
A short list that earns its place here — cabbage, cranberry, lavender, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Antelope Hills, 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 Antelope Hills 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 Antelope Hills — soil, climate, flood, and parcel records. How we handle your address.
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Antelope Hills — the short answer
Antelope Hills, Wyoming: USDA zone 5a, about 150 days between hard freezes, across 9K acres of town.
- USDA zone
- 5a
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 8
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 5
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~150
- 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 5a is Antelope Hills's average, not your lot's — a low corner or a tree line moves it. Against Antelope Hills's 150-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Antelope Hills
Each reading below is measured for Antelope Hills itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredAntelope Hills runs about 150 days between hard freezes — a moderate growing season.
There is room for the full run of cool-season crops plus a warm-season main crop, but the calendar is tight enough that a late spring or early fall frost still decides how much finishes.
Time warm-season transplants to your last hard freeze, and a few weeks of season extension turns a near-miss harvest into a sure one.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredAntelope Hills sits in USDA hardiness zone 5a.
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 Antelope Hills is in
Antelope Hills sits in the Northwestern Great Plains — EPA Level III, inside the wider Great Plains. That is read at Antelope Hills's own centroid, and it is not what its county reads: Natrona County is mostly Wyoming Basin. The wider page above you is answering a different question about different ground.
What Grows in Antelope Hills
Every plant below cleared Antelope Hills's own zone 5a and its 150-day season. Each card opens that plant's Wyoming profile. How we score.
Is it too late to plant in Antelope Hills?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Apr 10; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 8 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 5 — long-season crops need about 90 days of runway, quick greens only 30. Even past midsummer there is room for a true fall garden here, and garlic planted near the close carries the momentum into next year.
What's on the federal record near Antelope Hills
Closest first, within ~10 miles of Antelope Hills. Listing isn't leaking, and distance isn't exposure.
- WARDWELL WATER & SEWER DISTRICTPFAS · 1.7 mi
- 37N 079W 30DCD01Nitrate · 5.2 mi
- C J ABBOTT INCBrownfields · 5.7 mi
- Haynes Grocery, Inc..Underground Storage Tanks · 6.8 mi
- SAFARILAND/DEFENSE TECHNOLOGYToxics Release Inventory · 7.1 mi
- SAFARILAND/DEFENSE TECHNOLOGYBrownfields · 7.1 mi
- 37N 078W 07DCD01Nitrate · 7.4 mi
Measured from Antelope Hills'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 Antelope Hills.
Total Sites
9
within ~10 miles of Antelope Hills
Risk Level
Moderate
Highest-severity
1 Toxics Release Inventory facility
Sources Checked
within ~10 miles of Antelope Hills
Severity Distribution
within ~10 miles of Antelope Hills
Highest-Severity Sites
Know Before You Grow
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •PFAS do not break down in groundwater. Irrigate from a tested source.
Check your specific parcel in Antelope Hills
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 Antelope Hills average
Your land is one point inside Antelope Hills
Everything above resolves to Antelope Hills 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 Antelope Hills Average
Antelope Hills Average
- ●USDA Zones 5a, averaged across Antelope Hills
- ●One soil character for all of Antelope Hills
- ●Frost dates read at Antelope Hills's scale: May 8 to Oct 5
YOUR Parcel
- ✓Your exact zone, not Antelope Hills's 5a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Antelope Hills
Pull a site-specific report for your exact address in Antelope Hills, Wyoming — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Antelope Hills averages can't show:
We read public map data around Antelope Hills — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Antelope Hills average
How we know this about Antelope Hills
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 Antelope Hills’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 Antelope Hills
When does frost risk typically end in Antelope Hills?
The last hard freeze (28°F) in Antelope Hills typically lands around May 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 May 29.
When is the first frost in Antelope Hills?
The first hard freeze (28°F) in Antelope Hills typically arrives around Oct 5, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 21, so the watching starts about Sep 5 — about 150 days after the spring freeze cleared.
How long is the growing season in Antelope Hills?
Measured between 28°F hard freezes, Antelope Hills sees about 150 frost-free days — roughly May 8 through Oct 5, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 29 to Sep 21, about 115 days.
Is the soil safe to grow vegetables in Antelope Hills?
The federal record around Antelope Hills shows 9 documented sites, mostly Nitrate entries (4), the nearest PFAS record about 1.7 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 I protect my plants from frost in Antelope Hills?
From about Sep 5 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 5 (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 5. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Antelope Hills's scale — its 5a band and its 150-day season. Your yard writes its own version of Antelope Hills'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 Antelope Hills’s own scale
6 of the readings below were taken at Antelope Hills's own scale — its own ~150-day season between 28°F freezes, the 8,522 acres it covers and 9 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Antelope Hills's own USDA hardiness band, zones 5aUSDA PHZM 2023
- Antelope Hills's own 28°F hard-freeze dates, about May 8 and Oct 5 and the ~150-day span between themNOAA 1991–2020 Climate Normals
- 9 documented contamination sites on the federal record near Antelope Hills, the closest PFAS record about 1.7 miles out from the town centreFederal environmental registers
- Antelope Hills's boundary and the 8,522 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5a and a ~150-day seasonGrowable Ground crop-matching engine
- Antelope Hills sits in the Northwestern Great Plains — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Antelope Hills's 8,522 acres read through its county's SSURGO summaryfrom Natrona County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Natrona County
- The growing challenges every Wyoming grower plans around — written at state scale, so they stay on the state guidefrom Wyoming
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Natrona County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Antelope Hills's 8,522 acreswhy one lot differs from the next →
- Which side of Antelope Hills you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 8,522 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest PFAS record about 1.7 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 Antelope Hills-wide figureread your own land →
More in Wyoming
Wider growing context
What grows across WyomingAntelope Hills sits outside our named growing regions, so Wyoming as a whole is its closest context here.
Nearby growing guides