Wyola, Montana, sits in USDA hardiness zone 4b — a zone band wide enough that plant choice, not possibility, is the interesting question.
Crops well matched to these conditions include cabbage, cranberry, cilantro, and collard greens — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in Wyola, 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 Wyola 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 Wyola — soil, climate, flood, and parcel records. How we handle your address.
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Wyola — the short answer
Wyola, Montana: USDA zone 4b, about 147 days between hard freezes, across 4K acres of town.
- USDA zone
- 4b
- 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 2
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~147
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 4K 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 4b is Wyola's average, not your lot's — a low corner or a tree line moves it. Against Wyola's 147-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Wyola
Each reading below is measured for Wyola itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredWyola runs about 147 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
MeasuredWyola sits in USDA hardiness zone 4b.
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 Wyola is in
Wyola sits in the Northwestern Great Plains — EPA Level III, inside the wider Great Plains. That is read at Wyola's own centroid rather than borrowed from Big Horn County.
What Grows in Wyola
Every plant below cleared Wyola's own zone 4b and its 147-day season. Each card opens that plant's Montana profile. How we score.
Is it too late to plant in Wyola?
Almost never — the real question is what to plant next. 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 2 — long-season crops need about 90 days of runway, quick greens only 30. In a season this compact, fast finishers and cold-hardy greens do the late work, and garlic tucked in before the freeze repays you next summer.
What's on the federal record near Wyola
Closest first, within ~10 miles of Wyola. Listing isn't leaking, and distance isn't exposure.
- WYOLA ELEMENTARY SCHOOLUnderground Storage Tanks · 1.5 mi
- 08S35E15DDBD01Nitrate · 1.7 mi
- 08S35E28ABAC01Nitrate · 2.4 mi
- 09S35E12BABA01Nitrate · 3.0 mi
- 07S35E36CBDB01Nitrate · 4.3 mi
- 09S34E01CDBB01Nitrate · 6.2 mi
- 07S35E23ABCC01Nitrate · 6.9 mi
- LITTLE HORN RANCHUnderground Storage Tanks · 7.0 mi
- FARMERS UNION OIL CO LODGE GRASSUnderground Storage Tanks · 7.7 mi
- FARMERS UNION OIL COMPANYBrownfields · 7.7 mi
- 07S35E11DBCB01Nitrate · 8.5 mi
- HI WAY SERVICEUnderground Storage Tanks · 8.6 mi
4 more sites are on the record inside the same radius. See them on the map
Measured from Wyola'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 Wyola.
Total Sites
25
within ~10 miles of Wyola
Risk Level
Low
Highest-severity
1 concentrated animal feeding operation
Sources Checked
within ~10 miles of Wyola
Severity Distribution
within ~10 miles of Wyola
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Wyola, Nitrate runs higher than the national average — 18 sites within ~10 miles of Wyola. 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 Wyola
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 Wyola average
Your land is one point inside Wyola
Everything above resolves to Wyola as a whole — one PHZM band and one 28°F frost record, read across 4K 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 Wyola Average
Wyola Average
- ●USDA Zones 4b, averaged across Wyola
- ●One soil character for all of Wyola
- ●Frost dates read at Wyola's scale: May 8 to Oct 2
YOUR Parcel
- ✓Your exact zone, not Wyola's 4b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Wyola
Pull a site-specific report for your exact address in Wyola, Montana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Wyola averages can't show:
We read public map data around Wyola — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Wyola average
How we know this about Wyola
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 Wyola’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 Wyola
When does frost risk typically end in Wyola?
The last hard freeze (28°F) in Wyola 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 Wyola?
The first hard freeze (28°F) in Wyola typically arrives around Oct 2, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 18, so the watching starts about Sep 2 — about 147 days after the spring freeze cleared.
How long is the growing season in Wyola?
Measured between 28°F hard freezes, Wyola sees about 147 frost-free days — roughly May 8 through Oct 2, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 29 to Sep 18, about 112 days.
Is the soil safe to grow vegetables in Wyola?
The federal record around Wyola is light — 25 documented sites across the 9 federal source types we checked, mostly Nitrate entries (18), the nearest Underground Storage Tanks record about 1.5 miles out — and proximity to a documented site is information, not a diagnosis of any one yard. Growing food here starts from a strong position; a soil test before new food beds settles any site-specific question.
How do gardeners stretch the season in Wyola?
With about 147 frost-free days between hard freezes, Wyola 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 175 to 203 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the May 8 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Wyola's scale — its 4b band and its 147-day season. Your yard writes its own version of Wyola'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 Wyola’s own scale
6 of the readings below were taken at Wyola's own scale — its own ~147-day season between 28°F freezes, the 4,305 acres it covers and 25 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Wyola's own USDA hardiness band, zones 4bUSDA PHZM 2023
- Wyola's own 28°F hard-freeze dates, about May 8 and Oct 2 and the ~147-day span between themNOAA 1991–2020 Climate Normals
- 25 documented contamination sites on the federal record near Wyola, the closest Underground Storage Tanks record about 1.5 miles out from the town centreFederal environmental registers
- Wyola's boundary and the 4,305 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 4b and a ~147-day seasonGrowable Ground crop-matching engine
- The ecoregion at Wyola's own centroid, the Northwestern Great PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Wyola's 4,305 acres read through its county's SSURGO summaryfrom Big Horn County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Big Horn County
- The growing challenges every Montana grower plans around — written at state scale, so they stay on the state guidefrom Montana
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Big Horn County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Wyola's 4,305 acreswhy one lot differs from the next →
- Which side of Wyola you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 4,305 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 1.5 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 Wyola-wide figureread your own land →
More in Montana
Wider growing context
What grows across MontanaWyola sits outside our named growing regions, so Montana as a whole is its closest context here.
Nearby growing guides