Kingsbury Colony, Montana, sits in USDA hardiness zone 4b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Well-matched crops include cabbage, cranberry, cilantro, and collard greens, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Even in Kingsbury Colony, 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 Kingsbury Colony 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 Kingsbury Colony — soil, climate, flood, and parcel records. How we handle your address.
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Kingsbury Colony — the short answer
Kingsbury Colony, Montana: USDA zone 4b, about 148 days between hard freezes, across 246 acres of town.
- USDA zone
- 4b
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 6
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 1
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~148
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 246 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 Kingsbury Colony's average, not your lot's — a low corner or a tree line moves it. Against Kingsbury Colony's 148-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Kingsbury Colony
Each reading below is measured for Kingsbury Colony itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredKingsbury Colony runs about 148 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
MeasuredKingsbury Colony 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 Kingsbury Colony is in
Kingsbury Colony sits in the Northwestern Glaciated Plains — EPA Level III, inside the wider Great Plains. That is read at Kingsbury Colony's own centroid rather than borrowed from Pondera County.
What Grows in Kingsbury Colony
Every plant below cleared Kingsbury Colony's own zone 4b and its 148-day season. Each card opens that plant's Montana profile. How we score.
Is it too late to plant in Kingsbury Colony?
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 8; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 6 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 1 — 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 Kingsbury Colony
Closest first, within ~10 miles of Kingsbury Colony. Listing isn't leaking, and distance isn't exposure.
- KINGSBURY COLONY FEEDLOTCAFO · 850 ft
- BIRCH CREEK COLONY-TREATMENT PLANTCAFO · 3.9 mi
- PONDERA COLONYCAFO · 5.4 mi
- MALMSTROM AFB T 49Underground Storage Tanks · 7.8 mi
- MALMSTROM AFB T 50Underground Storage Tanks · 7.8 mi
- MDOT DUPUYER OLD POST OFFICEUnderground Storage Tanks · 7.8 mi
- MERCURY EXPLORATION CO MONTANAUnderground Storage Tanks · 7.8 mi
- BILLS RANCH COUnderground Storage Tanks · 7.8 mi
- MALMSTROM AFB T 48Underground Storage Tanks · 7.8 mi
- JOHN WHETHAMUnderground Storage Tanks · 7.9 mi
- ROCKY MOUNTAIN MOTOR SERVICEUnderground Storage Tanks · 7.9 mi
- MDOT DUPUYER SITEUnderground Storage Tanks · 7.9 mi
1 more site is on the record inside the same radius. See them on the map
Measured from Kingsbury Colony'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 Kingsbury Colony.
Total Sites
14
within ~10 miles of Kingsbury Colony
Risk Level
Low
Highest-severity
3 concentrated animal feeding operations
Sources Checked
within ~10 miles of Kingsbury Colony
Severity Distribution
within ~10 miles of Kingsbury Colony
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •Large animal operations push nitrates and bacteria downstream. Below one, test your water.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in Kingsbury Colony
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 Kingsbury Colony average
Your land is one point inside Kingsbury Colony
Everything above resolves to Kingsbury Colony as a whole — one PHZM band and one 28°F frost record, read across 246 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 Kingsbury Colony Average
Kingsbury Colony Average
- ●USDA Zones 4b, averaged across Kingsbury Colony
- ●One soil character for all of Kingsbury Colony
- ●Frost dates read at Kingsbury Colony's scale: May 6 to Oct 1
YOUR Parcel
- ✓Your exact zone, not Kingsbury Colony's 4b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Kingsbury Colony
Pull a site-specific report for your exact address in Kingsbury Colony, Montana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Kingsbury Colony averages can't show:
We read public map data around Kingsbury Colony — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Kingsbury Colony average
How we know this about Kingsbury Colony
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 Kingsbury Colony’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 Kingsbury Colony
When does frost risk typically end in Kingsbury Colony?
The last hard freeze (28°F) in Kingsbury Colony typically lands around May 6, 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 27.
When is the first frost in Kingsbury Colony?
The first hard freeze (28°F) in Kingsbury Colony typically arrives around Oct 1, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 17, so the watching starts about Sep 1 — about 148 days after the spring freeze cleared.
How long is the growing season in Kingsbury Colony?
Measured between 28°F hard freezes, Kingsbury Colony sees about 148 frost-free days — roughly May 6 through Oct 1, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 27 to Sep 17, about 113 days.
Is the soil safe to grow vegetables in Kingsbury Colony?
The federal record around Kingsbury Colony is light — 14 documented sites across the 9 federal source types we checked, mostly Underground Storage Tanks entries (9), the nearest CAFO record about 0.2 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 Kingsbury Colony?
With about 148 frost-free days between hard freezes, Kingsbury Colony 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 176 to 204 days — and cold frames or low tunnels buy more. Starting transplants indoors ahead of the May 6 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Kingsbury Colony's scale — its 4b band and its 148-day season. Your yard writes its own version of Kingsbury Colony'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 Kingsbury Colony’s own scale
6 of the readings below were taken at Kingsbury Colony's own scale — its own ~148-day season between 28°F freezes, the 246 acres it covers and 14 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Kingsbury Colony's own USDA hardiness band, zones 4bUSDA PHZM 2023
- Kingsbury Colony's own 28°F hard-freeze dates, about May 6 and Oct 1 and the ~148-day span between themNOAA 1991–2020 Climate Normals
- 14 documented contamination sites on the federal record near Kingsbury Colony, the closest CAFO record about 0.2 miles out from the town centreFederal environmental registers
- Kingsbury Colony's boundary and the 246 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 4b and a ~148-day seasonGrowable Ground crop-matching engine
- The ecoregion at Kingsbury Colony's own centroid, the Northwestern Glaciated PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Kingsbury Colony's 246 acres read through its county's SSURGO summaryfrom Pondera County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Pondera 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 Pondera County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Kingsbury Colony's 246 acreswhy one lot differs from the next →
- Which side of Kingsbury Colony you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 246 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest CAFO record about 0.2 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 Kingsbury Colony-wide figureread your own land →