Littlefork, 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.
Expect cabbage, cranberry, epazote, and collard greens to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Littlefork, 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 Littlefork 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 Littlefork — soil, climate, flood, and parcel records. How we handle your address.
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Littlefork — the short answer
Littlefork, Minnesota: USDA zone 3b, about 148 days between hard freezes, across 762 acres of city.
- USDA zone
- 3b
- 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 3
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~148
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 762 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 Littlefork's average, not your lot's — a low corner or a tree line moves it. Against Littlefork's 148-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Littlefork
Each reading below is measured for Littlefork itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredLittlefork 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
MeasuredLittlefork 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 Littlefork is in
Littlefork sits in the Northern Minnesota Wetlands — EPA Level III, inside the wider Northern Forests. That is read at Littlefork's own centroid rather than borrowed from Koochiching County.
What Grows in Littlefork
Every plant below cleared Littlefork's own zone 3b and its 148-day season. Each card opens that plant's Minnesota profile. How we score.
Is it too late to plant in Littlefork?
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 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 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 Littlefork
Closest first, within ~10 miles of Littlefork. Listing isn't leaking, and distance isn't exposure.
- LITTLE FORK (GROUND WATER CONTAMINATION)Superfund · 250 ft
- Koochiching County Hwy GarageUnderground Storage Tanks · 300 ft
- MEL'S CORNER SERVICEBrownfields · 400 ft
- Mels Corner ServiceUnderground Storage Tanks · 450 ft
- Former Keith's Short StopUnderground Storage Tanks · 550 ft
- ISD 362 Littlefork Big Falls Jr/Sr HighUnderground Storage Tanks · 1300 ft
- ISD 362 LITTLEFORK BIG FALLSBrownfields · 1300 ft
- LITTLEFORK CITY OFBrownfields · 2100 ft
- LITTLEFORK MEDICAL CENTERBrownfields · 2300 ft
- KOOCHICHING HEALTH SERVICESBrownfields · 2300 ft
- MNDOT District 1 LittleforkUnderground Storage Tanks · 0.7 mi
- 65 ExpressUnderground Storage Tanks · 0.7 mi
5 more sites are on the record inside the same radius. See them on the map
Measured from Littlefork'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 Littlefork.
Total Sites
19
within ~10 miles of Littlefork
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Littlefork
Severity Distribution
within ~10 miles of Littlefork
Highest-Severity Sites
Know Before You Grow
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in Littlefork
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 Littlefork average
Your land is one point inside Littlefork
Everything above resolves to Littlefork as a whole — one PHZM band and one 28°F frost record, read across 762 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 Littlefork Average
Littlefork Average
- ●USDA Zones 3b, averaged across Littlefork
- ●One soil character for all of Littlefork
- ●Frost dates read at Littlefork's scale: May 8 to Oct 3
YOUR Parcel
- ✓Your exact zone, not Littlefork's 3b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Littlefork
Pull a site-specific report for your exact address in Littlefork, Minnesota — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Littlefork averages can't show:
We read public map data around Littlefork — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Littlefork average
How we know this about Littlefork
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 Littlefork’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 Littlefork
When does frost risk typically end in Littlefork?
The last hard freeze (28°F) in Littlefork 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 Littlefork?
The first hard freeze (28°F) in Littlefork 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 148 days after the spring freeze cleared.
How long is the growing season in Littlefork?
Measured between 28°F hard freezes, Littlefork sees about 148 frost-free days — roughly May 8 through Oct 3, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 29 to Sep 19, about 113 days.
Is the soil safe to grow vegetables in Littlefork?
The federal record around Littlefork is a meaningful one — 19 documented sites, mostly Brownfields entries (8), the nearest Superfund record under a tenth of a mile out — so a soil test before new food beds is a sensible precaution here, not a reason to hold back from growing. Remember that proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what sits where.
How do gardeners stretch the season in Littlefork?
With about 148 frost-free days between hard freezes, Littlefork 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 8 hard-freeze normal stretches the season without touching the calendar.
Everything above is measured at Littlefork's scale — its 3b band and its 148-day season. Your yard writes its own version of Littlefork'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 Littlefork’s own scale
6 of the readings below were taken at Littlefork's own scale — its own ~148-day season between 28°F freezes, the 762 acres it covers and 19 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Littlefork's own USDA hardiness band, zones 3bUSDA PHZM 2023
- Littlefork's own 28°F hard-freeze dates, about May 8 and Oct 3 and the ~148-day span between themNOAA 1991–2020 Climate Normals
- 19 documented contamination sites on the federal record near Littlefork, the closest Superfund record under a tenth of a mile out from the town centreFederal environmental registers
- Littlefork's boundary and the 762 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 3b and a ~148-day seasonGrowable Ground crop-matching engine
- The ecoregion at Littlefork's own centroid, the Northern Minnesota WetlandsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Littlefork's 762 acres read through its county's SSURGO summaryfrom Koochiching County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Koochiching 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 Koochiching County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Littlefork's 762 acreswhy one lot differs from the next →
- Which side of Littlefork you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 762 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Superfund 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 Littlefork-wide figureread your own land →
More in Minnesota
Wider growing context
What grows across MinnesotaLittlefork sits outside our named growing regions, so Minnesota as a whole is its closest context here.
Nearby growing guides