Moore, Montana, sits in USDA hardiness zone 4b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Expect cabbage, cranberry, turkish rocket, and collard greens to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Moore, 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 Moore 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 Moore — soil, climate, flood, and parcel records. How we handle your address.
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Moore — the short answer
Moore, Montana: USDA zone 4b, about 151 days between hard freezes, across 187 acres of town.
- USDA zone
- 4b
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 5
- 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
- ~151
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 187 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 Moore's average, not your lot's — a low corner or a tree line moves it. Against Moore's 151-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Moore
Each reading below is measured for Moore itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredMoore runs about 151 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
MeasuredMoore 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 Moore is in
Moore sits in the Northwestern Great Plains — EPA Level III, inside the wider Great Plains. That is read at Moore's own centroid rather than borrowed from Fergus County.
What Grows in Moore
Every plant below cleared Moore's own zone 4b and its 151-day season. Each card opens that plant's Montana profile. How we score.
Is it too late to plant in Moore?
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 7; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 5 (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. 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 Moore
Closest first, within ~10 miles of Moore. Listing isn't leaking, and distance isn't exposure.
- MOORE FARMERS OIL CO 1405510Underground Storage Tanks · 450 ft
- MOORE FARMERS OIL CO 5613901Underground Storage Tanks · 450 ft
- MOORE SHOPUnderground Storage Tanks · 650 ft
- KARL J HERTELUnderground Storage Tanks · 800 ft
- GUY M WILLSONUnderground Storage Tanks · 800 ft
- BEACON STAR ANTIQUE AIRFIELDUnderground Storage Tanks · 800 ft
- EDDIES CORNER INCUnderground Storage Tanks · 2.3 mi
- 14N16E18ABBC01Nitrate · 2.4 mi
- MALMSTROM AFB L 11Underground Storage Tanks · 2.6 mi
- MALMSTROM AFB M 6Underground Storage Tanks · 2.9 mi
- MALMSTROM AFB M 11Underground Storage Tanks · 2.9 mi
- MALMSTROM AFB L 2Underground Storage Tanks · 2.9 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Moore'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 Moore.
Sources Checked
within ~10 miles of Moore
Severity Distribution
within ~10 miles of Moore
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Moore, two things run higher than the national average within ~10 miles of Moore — CAFO (3 sites) and Nitrate (38 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
CAFO: CAFOs pose a different contamination profile than chemical sources.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Moore
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 Moore average
Your land is one point inside Moore
Everything above resolves to Moore as a whole — one PHZM band and one 28°F frost record, read across 187 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 Moore Average
Moore Average
- ●USDA Zones 4b, averaged across Moore
- ●One soil character for all of Moore
- ●Frost dates read at Moore's scale: May 5 to Oct 3
YOUR Parcel
- ✓Your exact zone, not Moore's 4b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Moore
Pull a site-specific report for your exact address in Moore, Montana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Moore averages can't show:
We read public map data around Moore — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Moore average
How we know this about Moore
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 Moore’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 Moore
When does frost risk typically end in Moore?
The last hard freeze (28°F) in Moore typically lands around May 5, 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 26.
When is the first frost in Moore?
The first hard freeze (28°F) in Moore 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 151 days after the spring freeze cleared.
How long is the growing season in Moore?
Measured between 28°F hard freezes, Moore sees about 151 frost-free days — roughly May 5 through Oct 3, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 26 to Sep 19, about 116 days.
Is the soil safe to grow vegetables in Moore?
The federal record around Moore shows 59 documented sites, mostly Nitrate entries (38), the nearest Underground Storage Tanks record under a tenth of a mile 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 Moore?
From about Sep 3 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 3 (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 3. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Moore's scale — its 4b band and its 151-day season. Your yard writes its own version of Moore'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 Moore’s own scale
6 of the readings below were taken at Moore's own scale — its own ~151-day season between 28°F freezes, the 187 acres it covers and 59 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Moore's own USDA hardiness band, zones 4bUSDA PHZM 2023
- Moore's own 28°F hard-freeze dates, about May 5 and Oct 3 and the ~151-day span between themNOAA 1991–2020 Climate Normals
- 59 documented contamination sites on the federal record near Moore, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Moore's boundary and the 187 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 4b and a ~151-day seasonGrowable Ground crop-matching engine
- The ecoregion at Moore's own centroid, the Northwestern Great PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Moore's 187 acres read through its county's SSURGO summaryfrom Fergus County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Fergus 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 Fergus County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Moore's 187 acreswhy one lot differs from the next →
- Which side of Moore you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 187 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 Moore-wide figureread your own land →
More in Montana
Wider growing context
What grows across MontanaMoore sits outside our named growing regions, so Montana as a whole is its closest context here.
Nearby growing guides