Lanesboro, Iowa, sits in USDA hardiness zone 5a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
On paper, cabbage, cranberry, lavender, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Lanesboro, 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 Lanesboro 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 Lanesboro — soil, climate, flood, and parcel records. How we handle your address.
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Lanesboro — the short answer
Lanesboro, Iowa: USDA zone 5a, about 189 days between hard freezes, across 476 acres of city.
- USDA zone
- 5a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 15
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 21
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~189
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 476 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 Lanesboro's average, not your lot's — a low corner or a tree line moves it. Against Lanesboro's 189-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Lanesboro
Each reading below is measured for Lanesboro itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredLanesboro runs about 189 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
MeasuredLanesboro 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 Lanesboro is in
Lanesboro sits in the Western Corn Belt Plains — EPA Level III, inside the wider Great Plains. That is read at Lanesboro's own centroid rather than borrowed from Carroll County.
What Grows in Lanesboro
Every plant below cleared Lanesboro's own zone 5a and its 189-day season. Each card opens that plant's Iowa profile. How we score.
Is it too late to plant in Lanesboro?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 18; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 15 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 21 — 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 Lanesboro
Closest first, within ~10 miles of Lanesboro. Listing isn't leaking, and distance isn't exposure.
- 085N33W09DDAB 06860 1954Lanesboro 2Nitrate · 600 ft
- CARROLL COUNTY ENGINEERUnderground Storage Tanks · 700 ft
- D & D FILTER DISPOSALBrownfields · 1100 ft
- 085N33W09DAC 01406 1941Lanesboro 1Nitrate · 1700 ft
- 085N33W17DC 1915Nitrate · 1.5 mi
- 085N33W07ABBA 26765 1982IGS & USGS WC-133Nitrate · 2.4 mi
- 085N33W34AAAANitrate · 4.2 mi
- 084N33W03BDAA 26762 1982IGS & USGS WC-130Nitrate · 4.5 mi
- 084N33W03AADC 26761 1982IGS & USGS WC-129Nitrate · 4.5 mi
- 084N33W02BDBA 26764 1982IGS & USGS WC-132Nitrate · 4.6 mi
- 085N32W17AABB 12310 1960Nitrate · 4.9 mi
- 084N33W03CADA 26763 1982IGS & USGS WC-131Nitrate · 4.9 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Lanesboro'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 Lanesboro.
Total Sites
100
within ~10 miles of Lanesboro
Risk Level
Moderate
Highest-severity
2 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Lanesboro
Severity Distribution
within ~10 miles of Lanesboro
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Lanesboro, two things run higher than the national average within ~10 miles of Lanesboro — CAFO (4 sites) and Nitrate (46 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
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 Lanesboro
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 Lanesboro average
Your land is one point inside Lanesboro
Everything above resolves to Lanesboro as a whole — one PHZM band and one 28°F frost record, read across 476 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 Lanesboro Average
Lanesboro Average
- ●USDA Zones 5a, averaged across Lanesboro
- ●One soil character for all of Lanesboro
- ●Frost dates read at Lanesboro's scale: Apr 15 to Oct 21
YOUR Parcel
- ✓Your exact zone, not Lanesboro's 5a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Lanesboro
Pull a site-specific report for your exact address in Lanesboro, Iowa — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Lanesboro averages can't show:
We read public map data around Lanesboro — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Lanesboro average
How we know this about Lanesboro
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 Lanesboro’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 Lanesboro
When does frost risk typically end in Lanesboro?
The last hard freeze (28°F) in Lanesboro typically lands around Apr 15, 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 6.
When is the first frost in Lanesboro?
The first hard freeze (28°F) in Lanesboro typically arrives around Oct 21, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 7, so the watching starts about Sep 21 — about 189 days after the spring freeze cleared.
How long is the growing season in Lanesboro?
Measured between 28°F hard freezes, Lanesboro sees about 189 frost-free days — roughly Apr 15 through Oct 21, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 6 to Oct 7, about 154 days.
Is the soil safe to grow vegetables in Lanesboro?
The federal record around Lanesboro shows 100 documented sites, mostly Nitrate entries (46), the nearest Nitrate record about 0.1 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 Lanesboro?
From about Sep 21 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 21 (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 21. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Lanesboro's scale — its 5a band and its 189-day season. Your yard writes its own version of Lanesboro'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 Lanesboro’s own scale
6 of the readings below were taken at Lanesboro's own scale — its own ~189-day season between 28°F freezes, the 476 acres it covers and 100 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Lanesboro's own USDA hardiness band, zones 5aUSDA PHZM 2023
- Lanesboro's own 28°F hard-freeze dates, about Apr 15 and Oct 21 and the ~189-day span between themNOAA 1991–2020 Climate Normals
- 100 documented contamination sites on the federal record near Lanesboro, the closest Nitrate record about 0.1 miles out from the town centreFederal environmental registers
- Lanesboro's boundary and the 476 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5a and a ~189-day seasonGrowable Ground crop-matching engine
- The ecoregion at Lanesboro's own centroid, the Western Corn Belt PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Lanesboro's 476 acres read through its county's SSURGO summaryfrom Carroll County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Carroll County
- The growing challenges every Iowa grower plans around — written at state scale, so they stay on the state guidefrom Iowa
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Carroll County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Lanesboro's 476 acreswhy one lot differs from the next →
- Which side of Lanesboro you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 476 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 0.1 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 Lanesboro-wide figureread your own land →
More in Iowa
Wider growing context
What grows across IowaLanesboro sits outside our named growing regions, so Iowa as a whole is its closest context here.
Nearby growing guides