La Barge, Wyoming, sits in USDA hardiness zone 3b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Crops well matched to these conditions include okra, cranberry, cilantro, and zucchini — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in La Barge, 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 La Barge 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 La Barge — soil, climate, flood, and parcel records. How we handle your address.
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La Barge — the short answer
La Barge, Wyoming: USDA zone 3b, about 100 days between hard freezes, across 603 acres of town.
- USDA zone
- 3b
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 30
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Sep 7
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~100
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 603 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 3b is La Barge's average, not your lot's — a low corner or a tree line moves it. Against La Barge's 100-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in La Barge
Each reading below is measured for La Barge itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredLa Barge runs about 100 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
MeasuredLa Barge sits in USDA hardiness zone 3b.
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 La Barge is in
La Barge sits in the Wyoming Basin — EPA Level III, inside the wider North American Deserts. That is read at La Barge's own centroid rather than borrowed from Lincoln County.
What Grows in La Barge
Every plant below cleared La Barge's own zone 3b and its 100-day season. Each card opens that plant's Wyoming profile. How we score.
Is it too late to plant in La Barge?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around May 2; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 30 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Sep 7 — 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 La Barge
Closest first, within ~10 miles of La Barge. Listing isn't leaking, and distance isn't exposure.
- MOUNTAINEER REFININGBrownfields · 500 ft
- FMC Fontennelle CompressorUnderground Storage Tanks · 800 ft
- Fontenelle Compressor StationUnderground Storage Tanks · 800 ft
- Labarge UnitUnderground Storage Tanks · 800 ft
- WY Department of TransportationUnderground Storage Tanks · 900 ft
- FMC CORPORATIONBrownfields · 900 ft
- LaBarge Country StoreUnderground Storage Tanks · 1100 ft
- LABARGE BLACK CANYON DEHYDRATION FACILITYBrownfields · 1100 ft
- ROCKY MOUNTAIN PLS_LABARGE STATIONBrownfields · 1100 ft
- LaBarge Fire DepartmentUnderground Storage Tanks · 1300 ft
- Valley ServiceUnderground Storage Tanks · 1400 ft
- Dry Creek StationUnderground Storage Tanks · 1800 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from La Barge'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 La Barge.
Total Sites
32
within ~10 miles of La Barge
Risk Level
Elevated
Highest-severity
2 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of La Barge
Severity Distribution
within ~10 miles of La Barge
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around La Barge, Nitrate runs higher than the national average — 12 sites within ~10 miles of La Barge. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in La Barge
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 La Barge average
Your land is one point inside La Barge
Everything above resolves to La Barge as a whole — one PHZM band and one 28°F frost record, read across 603 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 La Barge Average
La Barge Average
- ●USDA Zones 3b, averaged across La Barge
- ●One soil character for all of La Barge
- ●Frost dates read at La Barge's scale: May 30 to Sep 7
YOUR Parcel
- ✓Your exact zone, not La Barge's 3b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in La Barge
Pull a site-specific report for your exact address in La Barge, Wyoming — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that La Barge averages can't show:
We read public map data around La Barge — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the La Barge average
How we know this about La Barge
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 La Barge’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 La Barge
When does frost risk typically end in La Barge?
The last hard freeze (28°F) in La Barge typically lands around May 30, 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 20.
When is the first frost in La Barge?
The first hard freeze (28°F) in La Barge typically arrives around Sep 7, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Aug 24, so the watching starts about Aug 8 — about 100 days after the spring freeze cleared.
How long is the growing season in La Barge?
Measured between 28°F hard freezes, La Barge sees about 100 frost-free days — roughly May 30 through Sep 7, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Jun 20 to Aug 24, about 65 days.
Is the soil safe to grow vegetables in La Barge?
The federal record around La Barge is a meaningful one — 32 documented sites, mostly Nitrate entries (12), the nearest Brownfields record under a tenth of a mile 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 La Barge?
With about 100 frost-free days between hard freezes, La Barge 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 128 to 156 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the May 30 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at La Barge's scale — its 3b band and its 100-day season. Your yard writes its own version of La Barge'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 La Barge’s own scale
6 of the readings below were taken at La Barge's own scale — its own ~100-day season between 28°F freezes, the 603 acres it covers and 32 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- La Barge's own USDA hardiness band, zones 3bUSDA PHZM 2023
- La Barge's own 28°F hard-freeze dates, about May 30 and Sep 7 and the ~100-day span between themNOAA 1991–2020 Climate Normals
- 32 documented contamination sites on the federal record near La Barge, the closest Brownfields record under a tenth of a mile out from the town centreFederal environmental registers
- La Barge's boundary and the 603 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 3b and a ~100-day seasonGrowable Ground crop-matching engine
- The ecoregion at La Barge's own centroid, the Wyoming BasinUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so La Barge's 603 acres read through its county's SSURGO summaryfrom Lincoln County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Lincoln 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 Lincoln County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among La Barge's 603 acreswhy one lot differs from the next →
- Which side of La Barge you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 603 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record under a tenth of a mile 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 La Barge-wide figureread your own land →
More in Wyoming
Wider growing context
What grows across WyomingLa Barge sits outside our named growing regions, so Wyoming as a whole is its closest context here.
Nearby growing guides