McIntosh, Minnesota, sits in USDA hardiness zone 3b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Growers here do well with cabbage, cranberry, turkish rocket, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in McIntosh, 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 McIntosh 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 McIntosh — soil, climate, flood, and parcel records. How we handle your address.
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McIntosh — the short answer
McIntosh, Minnesota: USDA zone 3b, about 160 days between hard freezes, across 639 acres of city.
- USDA zone
- 3b
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 1
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 8
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~160
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 639 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 McIntosh's average, not your lot's — a low corner or a tree line moves it. Against McIntosh's 160-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in McIntosh
Each reading below is measured for McIntosh itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredMcIntosh runs about 160 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
MeasuredMcIntosh 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 McIntosh is in
McIntosh sits in the Lake Agassiz Plain — EPA Level III, inside the wider Great Plains. That is read at McIntosh's own centroid rather than borrowed from Polk County.
What Grows in McIntosh
Every plant below cleared McIntosh's own zone 3b and its 160-day season. Each card opens that plant's Minnesota profile. How we score.
Is it too late to plant in McIntosh?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Apr 3; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 1 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 8 — long-season crops need about 90 days of runway, quick greens only 30. Late in the year the fall bench takes over — quick greens, radishes, and garlic that repays you next summer.
What's on the federal record near McIntosh
Closest first, within ~10 miles of McIntosh. Listing isn't leaking, and distance isn't exposure.
- Kyles RepairUnderground Storage Tanks · 950 ft
- Dan's StandardUnderground Storage Tanks · 950 ft
- Wertish Oil CoUnderground Storage Tanks · 1000 ft
- MCINTOSH SENIOR LIVINGBrownfields · 1900 ft
- POPLAR MEADOWS SENIOR LIVINGBrownfields · 2200 ft
- 132701Nitrate · 0.9 mi
- 148N41W15CCDACC01Nitrate · 0.9 mi
- Red Lake Coop- Cenex C-StoreUnderground Storage Tanks · 2.4 mi
- Burslie Auto SalesUnderground Storage Tanks · 2.4 mi
- 529354Nitrate · 4.7 mi
- 400249Nitrate · 4.7 mi
- ALTRU CLINIC - ERSKINEBrownfields · 4.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from McIntosh'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 McIntosh.
Total Sites
83
within ~10 miles of McIntosh
Risk Level
Moderate
Highest-severity
4 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of McIntosh
Severity Distribution
within ~10 miles of McIntosh
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around McIntosh, Nitrate runs higher than the national average — 22 sites within ~10 miles of McIntosh. That's not a problem with your land — it's information about it.
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 McIntosh
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 McIntosh average
Your land is one point inside McIntosh
Everything above resolves to McIntosh as a whole — one PHZM band and one 28°F frost record, read across 639 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 city 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 McIntosh Average
McIntosh Average
- ●USDA Zones 3b, averaged across McIntosh
- ●One soil character for all of McIntosh
- ●Frost dates read at McIntosh's scale: May 1 to Oct 8
YOUR Parcel
- ✓Your exact zone, not McIntosh's 3b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in McIntosh
Pull a site-specific report for your exact address in McIntosh, Minnesota — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that McIntosh averages can't show:
We read public map data around McIntosh — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the McIntosh average
How we know this about McIntosh
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at McIntosh’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 city grain anywhere on this page — there is no city-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 McIntosh
When does frost risk typically end in McIntosh?
The last hard freeze (28°F) in McIntosh typically lands around May 1, 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 22.
When is the first frost in McIntosh?
The first hard freeze (28°F) in McIntosh typically arrives around Oct 8, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 24, so the watching starts about Sep 8 — about 160 days after the spring freeze cleared.
How long is the growing season in McIntosh?
Measured between 28°F hard freezes, McIntosh sees about 160 frost-free days — roughly May 1 through Oct 8, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 22 to Sep 24, about 125 days.
Is the soil safe to grow vegetables in McIntosh?
The federal record around McIntosh shows 83 documented sites, mostly Underground Storage Tanks entries (30), the nearest Underground Storage Tanks record about 0.2 miles 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 McIntosh?
From about Sep 8 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 8 (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 8. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at McIntosh's scale — its 3b band and its 160-day season. Your yard writes its own version of McIntosh'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 McIntosh’s own scale
6 of the readings below were taken at McIntosh's own scale — its own ~160-day season between 28°F freezes, the 639 acres it covers and 83 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- McIntosh's own USDA hardiness band, zones 3bUSDA PHZM 2023
- McIntosh's own 28°F hard-freeze dates, about May 1 and Oct 8 and the ~160-day span between themNOAA 1991–2020 Climate Normals
- 83 documented contamination sites on the federal record near McIntosh, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- McIntosh's boundary and the 639 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 3b and a ~160-day seasonGrowable Ground crop-matching engine
- The ecoregion at McIntosh's own centroid, the Lake Agassiz PlainUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so McIntosh's 639 acres read through its county's SSURGO summaryfrom Polk County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Polk County
- The growing challenges every Minnesota grower plans around — written at state scale, so they stay on the state guidefrom Minnesota
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Polk County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among McIntosh's 639 acreswhy one lot differs from the next →
- Which side of McIntosh you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 639 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 McIntosh-wide figureread your own land →
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