Pony, Montana, sits in USDA hardiness zone 5a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
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 Pony, 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 Pony 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 Pony — soil, climate, flood, and parcel records. How we handle your address.
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Pony — the short answer
Pony, Montana: USDA zone 5a, about 146 days between hard freezes, across 859 acres of town.
- USDA zone
- 5a
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 10
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 3
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~146
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 859 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 Pony's average, not your lot's — a low corner or a tree line moves it. Against Pony's 146-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Pony
Each reading below is measured for Pony itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredPony runs about 146 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
MeasuredPony 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 Pony is in
Pony sits in the Middle Rockies — EPA Level III, inside the wider Northwestern Forested Mountains. That is read at Pony's own centroid rather than borrowed from Madison County.
What Grows in Pony
Every plant below cleared Pony's own zone 5a and its 146-day season. Each card opens that plant's Montana profile. How we score.
Is it too late to plant in Pony?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Apr 12; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 10 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 3 — 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 Pony
Closest first, within ~10 miles of Pony. Listing isn't leaking, and distance isn't exposure.
- 02S02W17CACC01Nitrate · 1600 ft
- 02S02W18DDBB01Nitrate · 2500 ft
- Raspberry MineMining · 2.5 mi
- Scalded Cat MineMining · 2.6 mi
- Strawberry MineMining · 2.6 mi
- Bessie and Golden Wave MineMining · 2.8 mi
- Garnet MineMining · 2.9 mi
- Garnet Gold MineMining · 2.9 mi
- Blue Rock and May BasketMining · 2.9 mi
- ArizonaMining · 3.3 mi
- Old Joe MineMining · 3.4 mi
- 02S02W11BDBB01Nitrate · 3.4 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Pony'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 Pony.
Sources Checked
within ~10 miles of Pony
Severity Distribution
within ~10 miles of Pony
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Pony, Mining runs higher than the national average — 72 sites within ~10 miles of Pony. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Mining: Mining sites — both historic and active — can leach heavy metals (arsenic, lead, cadmium, mercury) into soil and water for centuries after operations cease.
Test soil for heavy metals (lead, arsenic, cadmium, mercury) — this is essential near any mining site.
Check your specific parcel in Pony
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 Pony average
Your land is one point inside Pony
Everything above resolves to Pony as a whole — one PHZM band and one 28°F frost record, read across 859 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 Pony Average
Pony Average
- ●USDA Zones 5a, averaged across Pony
- ●One soil character for all of Pony
- ●Frost dates read at Pony's scale: May 10 to Oct 3
YOUR Parcel
- ✓Your exact zone, not Pony's 5a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Pony
Pull a site-specific report for your exact address in Pony, Montana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Pony averages can't show:
We read public map data around Pony — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Pony average
How we know this about Pony
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 Pony’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 Pony
When does frost risk typically end in Pony?
The last hard freeze (28°F) in Pony typically lands around May 10, 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 31.
When is the first frost in Pony?
The first hard freeze (28°F) in Pony typically arrives around Oct 3, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 19, so the watching starts about Sep 3 — about 146 days after the spring freeze cleared.
How long is the growing season in Pony?
Measured between 28°F hard freezes, Pony sees about 146 frost-free days — roughly May 10 through Oct 3, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 31 to Sep 19, about 111 days.
Is the soil safe to grow vegetables in Pony?
The federal record around Pony runs heavier than most — 90 documented sites, mostly Mining entries (72), the nearest Nitrate record about 0.3 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 Pony?
With about 146 frost-free days between hard freezes, Pony 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 174 to 202 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the May 10 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Pony's scale — its 5a band and its 146-day season. Your yard writes its own version of Pony'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 Pony’s own scale
6 of the readings below were taken at Pony's own scale — its own ~146-day season between 28°F freezes, the 859 acres it covers and 90 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Pony's own USDA hardiness band, zones 5aUSDA PHZM 2023
- Pony's own 28°F hard-freeze dates, about May 10 and Oct 3 and the ~146-day span between themNOAA 1991–2020 Climate Normals
- 90 documented contamination sites on the federal record near Pony, the closest Nitrate record about 0.3 miles out from the town centreFederal environmental registers
- Pony's boundary and the 859 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5a and a ~146-day seasonGrowable Ground crop-matching engine
- The ecoregion at Pony's own centroid, the Middle RockiesUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Pony's 859 acres read through its county's SSURGO summaryfrom Madison County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Madison 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 Madison County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Pony's 859 acreswhy one lot differs from the next →
- Which side of Pony you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 859 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 0.3 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 Pony-wide figureread your own land →
More in Montana
Wider growing context
What grows across MontanaPony sits outside our named growing regions, so Montana as a whole is its closest context here.
Nearby growing guides