Buck Grove, Iowa, sits in USDA hardiness zone 5b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Reliable performers under these conditions include cabbage, cranberry, lavender, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Buck Grove, 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 Buck Grove 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 Buck Grove — soil, climate, flood, and parcel records. How we handle your address.
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Buck Grove — the short answer
Buck Grove, Iowa: USDA zone 5b, about 190 days between hard freezes, across 236 acres of city.
- USDA zone
- 5b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 12
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 19
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~190
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 236 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 5b is Buck Grove's average, not your lot's — a low corner or a tree line moves it. Against Buck Grove's 190-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Buck Grove
Each reading below is measured for Buck Grove itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredBuck Grove runs about 190 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
MeasuredBuck Grove sits in USDA hardiness zone 5b.
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 Buck Grove is in
Buck Grove sits in the Western Corn Belt Plains — EPA Level III, inside the wider Great Plains. That is read at Buck Grove's own centroid rather than borrowed from Crawford County.
What Grows in Buck Grove
Every plant below cleared Buck Grove's own zone 5b and its 190-day season. Each card opens that plant's Iowa profile. How we score.
Is it too late to plant in Buck Grove?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 15; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 12 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 19 — long-season crops need about 90 days of runway, quick greens only 30. As the window narrows, the plantings just get faster — fall brassicas, then greens, then garlic to finish.
What's on the federal record near Buck Grove
Closest first, within ~10 miles of Buck Grove. Listing isn't leaking, and distance isn't exposure.
- 082N39W15CBAB 26343 1981IGS & USGS WC-12Nitrate · 0.8 mi
- 082N40W02AAC 1925ArionNitrate · 3.7 mi
- 082N40W02ABDD 1925Arion 1Nitrate · 4.2 mi
- 082N40W02ABDD 1910Arion 1Nitrate · 4.2 mi
- 082N40W02ABDD 1965Arion 2Nitrate · 4.2 mi
- 083N40W35DDB 00571 1937Nitrate · 4.3 mi
- JAMES REISERToxics Release Inventory · 4.5 mi
- DENISON MUNICIPAL AIRPORTUnderground Storage Tanks · 4.9 mi
- THE ANDERSONS DENISON ETHANOL, LLCBrownfields · 4.9 mi
- THE ANDERSONS DENISON ETHANOL, LLCToxics Release Inventory · 4.9 mi
- DOW CITY-ARION COMM SCHOOLUnderground Storage Tanks · 5.1 mi
- ETTLEMAN OIL COMPANYUnderground Storage Tanks · 5.2 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Buck Grove'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 Buck Grove.
Total Sites
194
within ~10 miles of Buck Grove
Risk Level
Moderate
Highest-severity
13 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Buck Grove
Severity Distribution
within ~10 miles of Buck Grove
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Buck Grove, two things run higher than the national average within ~10 miles of Buck Grove — Nitrate (90 sites) and Toxics Release Inventory (13 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Buck Grove
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 Buck Grove average
Your land is one point inside Buck Grove
Everything above resolves to Buck Grove as a whole — one PHZM band and one 28°F frost record, read across 236 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 Buck Grove Average
Buck Grove Average
- ●USDA Zones 5b, averaged across Buck Grove
- ●One soil character for all of Buck Grove
- ●Frost dates read at Buck Grove's scale: Apr 12 to Oct 19
YOUR Parcel
- ✓Your exact zone, not Buck Grove's 5b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Buck Grove
Pull a site-specific report for your exact address in Buck Grove, Iowa — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Buck Grove averages can't show:
We read public map data around Buck Grove — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Buck Grove average
How we know this about Buck Grove
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 Buck Grove’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 Buck Grove
When does frost risk typically end in Buck Grove?
The last hard freeze (28°F) in Buck Grove typically lands around Apr 12, 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 3.
When is the first frost in Buck Grove?
The first hard freeze (28°F) in Buck Grove typically arrives around Oct 19, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 5, so the watching starts about Sep 19 — about 190 days after the spring freeze cleared.
How long is the growing season in Buck Grove?
Measured between 28°F hard freezes, Buck Grove sees about 190 frost-free days — roughly Apr 12 through Oct 19, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 3 to Oct 5, about 155 days.
Is the soil safe to grow vegetables in Buck Grove?
The federal record around Buck Grove shows 194 documented sites, mostly Nitrate entries (90), the nearest Nitrate record about 0.8 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 Buck Grove?
From about Sep 19 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 19 (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 19. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Buck Grove's scale — its 5b band and its 190-day season. Your yard writes its own version of Buck Grove'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 Buck Grove’s own scale
6 of the readings below were taken at Buck Grove's own scale — its own ~190-day season between 28°F freezes, the 236 acres it covers and 194 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Buck Grove's own USDA hardiness band, zones 5bUSDA PHZM 2023
- Buck Grove's own 28°F hard-freeze dates, about Apr 12 and Oct 19 and the ~190-day span between themNOAA 1991–2020 Climate Normals
- 194 documented contamination sites on the federal record near Buck Grove, the closest Nitrate record about 0.8 miles out from the town centreFederal environmental registers
- Buck Grove's boundary and the 236 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5b and a ~190-day seasonGrowable Ground crop-matching engine
- The ecoregion at Buck Grove'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 Buck Grove's 236 acres read through its county's SSURGO summaryfrom Crawford County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Crawford 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 Crawford County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Buck Grove's 236 acreswhy one lot differs from the next →
- Which side of Buck Grove you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 236 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 0.8 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 Buck Grove-wide figureread your own land →
More in Iowa
Wider growing context
What grows across IowaBuck Grove sits outside our named growing regions, so Iowa as a whole is its closest context here.