Eagle Grove, Iowa, sits in USDA hardiness zone 5a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
These conditions suit cabbage, cranberry, lavender, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Eagle 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 Eagle 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 Eagle Grove — soil, climate, flood, and parcel records. How we handle your address.
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Eagle Grove — the short answer
Eagle Grove, Iowa: USDA zone 5a, about 184 days between hard freezes, across 3K acres of city.
- USDA zone
- 5a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 17
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 18
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~184
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 3K 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 Eagle Grove's average, not your lot's — a low corner or a tree line moves it. Against Eagle Grove's 184-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Eagle Grove
Each reading below is measured for Eagle Grove itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredEagle Grove runs about 184 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
MeasuredEagle Grove 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 Eagle Grove is in
Eagle Grove sits in the Western Corn Belt Plains — EPA Level III, inside the wider Great Plains. That is read at Eagle Grove's own centroid rather than borrowed from Wright County.
What Grows in Eagle Grove
Every plant below cleared Eagle Grove's own zone 5a and its 184-day season. Each card opens that plant's Iowa profile. How we score.
Is it too late to plant in Eagle Grove?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 20; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 17 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 18 — 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 Eagle Grove
Closest first, within ~10 miles of Eagle Grove. Listing isn't leaking, and distance isn't exposure.
- 091N26W27DBB 02001 1945Eagle Grove 2Nitrate · 300 ft
- SECURITY SAVINGS BANK PARKING LOTUnderground Storage Tanks · 450 ft
- 091N26W27CAAD 1952Eagle Grove 3Nitrate · 500 ft
- FORMER VISTAUnderground Storage Tanks · 550 ft
- EAGLE GROVE COMM SCHUnderground Storage Tanks · 550 ft
- 091N26W27BDD 08847 1957Eagle Grove 4Nitrate · 600 ft
- CENEX/AMPRIDEUnderground Storage Tanks · 600 ft
- CHICAGO AND NORTH WESTERNUnderground Storage Tanks · 850 ft
- GOLD-EAGLE COOPERATIVE-EAGLE GROVEBrownfields · 900 ft
- AG PROCESSING INCUnderground Storage Tanks · 1000 ft
- EAGLE GROVE HIGH SCHOOLBrownfields · 1000 ft
- EAGLE GROVE PROPERTYUnderground Storage Tanks · 1100 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Eagle 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 Eagle Grove.
Total Sites
197
within ~10 miles of Eagle Grove
Risk Level
Moderate
Highest-severity
4 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Eagle Grove
Severity Distribution
within ~10 miles of Eagle Grove
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Eagle Grove, Nitrate runs higher than the national average — 76 sites within ~10 miles of Eagle Grove. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around 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 Eagle 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 Eagle Grove average
Your land is one point inside Eagle Grove
Everything above resolves to Eagle Grove as a whole — one PHZM band and one 28°F frost record, read across 3K 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 Eagle Grove Average
Eagle Grove Average
- ●USDA Zones 5a, averaged across Eagle Grove
- ●One soil character for all of Eagle Grove
- ●Frost dates read at Eagle Grove's scale: Apr 17 to Oct 18
YOUR Parcel
- ✓Your exact zone, not Eagle Grove's 5a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Eagle Grove
Pull a site-specific report for your exact address in Eagle Grove, Iowa — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Eagle Grove averages can't show:
We read public map data around Eagle Grove — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Eagle Grove average
How we know this about Eagle 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 Eagle 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 Eagle Grove
When does frost risk typically end in Eagle Grove?
The last hard freeze (28°F) in Eagle Grove typically lands around Apr 17, 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 8.
When is the first frost in Eagle Grove?
The first hard freeze (28°F) in Eagle Grove typically arrives around Oct 18, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 4, so the watching starts about Sep 18 — about 184 days after the spring freeze cleared.
How long is the growing season in Eagle Grove?
Measured between 28°F hard freezes, Eagle Grove sees about 184 frost-free days — roughly Apr 17 through Oct 18, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 8 to Oct 4, about 149 days.
Is the soil safe to grow vegetables in Eagle Grove?
The federal record around Eagle Grove shows 197 documented sites, mostly Underground Storage Tanks entries (98), the nearest Nitrate record under a tenth of a mile 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 Eagle Grove?
From about Sep 18 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 18 (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 18. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Eagle Grove's scale — its 5a band and its 184-day season. Your yard writes its own version of Eagle 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 Eagle Grove’s own scale
6 of the readings below were taken at Eagle Grove's own scale — its own ~184-day season between 28°F freezes, the 2,621 acres it covers and 197 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Eagle Grove's own USDA hardiness band, zones 5aUSDA PHZM 2023
- Eagle Grove's own 28°F hard-freeze dates, about Apr 17 and Oct 18 and the ~184-day span between themNOAA 1991–2020 Climate Normals
- 197 documented contamination sites on the federal record near Eagle Grove, the closest Nitrate record under a tenth of a mile out from the town centreFederal environmental registers
- Eagle Grove's boundary and the 2,621 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5a and a ~184-day seasonGrowable Ground crop-matching engine
- The ecoregion at Eagle 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 Eagle Grove's 2,621 acres read through its county's SSURGO summaryfrom Wright County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Wright 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 Wright County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Eagle Grove's 2,621 acreswhy one lot differs from the next →
- Which side of Eagle 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 2,621 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate 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 Eagle Grove-wide figureread your own land →
More in Iowa
Wider growing context
What grows across IowaEagle Grove sits outside our named growing regions, so Iowa as a whole is its closest context here.