Eagle, Wisconsin, sits in USDA hardiness zone 5b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Crops well matched to these conditions include cabbage, cranberry, lavender, and collard greens — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in Eagle, 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 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 — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Eagle — the short answer
Eagle, Wisconsin: USDA zone 5b, about 190 days between hard freezes, across 890 acres of town.
- USDA zone
- 5b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 14
- 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
- ~190
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 890 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 Eagle's average, not your lot's — a low corner or a tree line moves it. Against Eagle's 190-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Eagle
Each reading below is measured for Eagle itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredEagle 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
MeasuredEagle 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 Eagle is in
Eagle sits in the Southeastern Wisconsin Till Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Eagle's own centroid rather than borrowed from Waukesha County.
What Grows in Eagle
Every plant below cleared Eagle's own zone 5b and its 190-day season. Each card opens that plant's Wisconsin profile. How we score.
Is it too late to plant in Eagle?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Mar 17; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 14 (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. Even past midsummer there is room for a true fall garden here, and garlic planted near the close carries the momentum into next year.
What's on the federal record near Eagle
Closest first, within ~10 miles of Eagle. Listing isn't leaking, and distance isn't exposure.
- WK-05/17E/23-1232Nitrate · 1100 ft
- ANTHONY KAU FARMUnderground Storage Tanks · 1800 ft
- THUEMLING TIMBrownfields · 1900 ft
- MITCHS RESTAURANTUnderground Storage Tanks · 2000 ft
- WESTERN EAGLE EXCAVATING & GRDUnderground Storage Tanks · 2000 ft
- Judson DomanUnderground Storage Tanks · 2000 ft
- GEORGE MEADE WILDLIFE AREAUnderground Storage Tanks · 2000 ft
- ROBERT LOEFERUnderground Storage Tanks · 2000 ft
- BANK ADDITION TO CHAPMAN OIL CO C-STOREUnderground Storage Tanks · 2000 ft
- AL GAGLIANOUnderground Storage Tanks · 2000 ft
- John A DayUnderground Storage Tanks · 2000 ft
- DOLLAR GENERAL #22466Brownfields · 2500 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Eagle'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.
Total Sites
423
within ~10 miles of Eagle
Risk Level
Elevated
Highest-severity
3 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Eagle
Severity Distribution
within ~10 miles of Eagle
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Eagle, two things run higher than the national average within ~10 miles of Eagle — CAFO (5 sites) and PFAS (4 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
CAFO: CAFOs pose a different contamination profile than chemical sources.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check your specific parcel in Eagle
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 average
Your land is one point inside Eagle
Everything above resolves to Eagle as a whole — one PHZM band and one 28°F frost record, read across 890 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 town 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 Average
Eagle Average
- ●USDA Zones 5b, averaged across Eagle
- ●One soil character for all of Eagle
- ●Frost dates read at Eagle's scale: Apr 14 to Oct 21
YOUR Parcel
- ✓Your exact zone, not Eagle's 5b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Eagle
Pull a site-specific report for your exact address in Eagle, Wisconsin — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Eagle averages can't show:
We read public map data around Eagle — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Eagle average
How we know this about Eagle
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this town’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Eagle’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 town grain anywhere on this page — there is no town-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
When does frost risk typically end in Eagle?
The last hard freeze (28°F) in Eagle typically lands around Apr 14, 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 5.
When is the first frost in Eagle?
The first hard freeze (28°F) in Eagle 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 190 days after the spring freeze cleared.
How long is the growing season in Eagle?
Measured between 28°F hard freezes, Eagle sees about 190 frost-free days — roughly Apr 14 through Oct 21, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 5 to Oct 7, about 155 days.
Is the soil safe to grow vegetables in Eagle?
The federal record around Eagle is a meaningful one — 423 documented sites, mostly Underground Storage Tanks entries (218), the nearest Nitrate record about 0.2 miles 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 I protect my plants from frost in Eagle?
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 Eagle's scale — its 5b band and its 190-day season. Your yard writes its own version of Eagle'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’s own scale
6 of the readings below were taken at Eagle's own scale — its own ~190-day season between 28°F freezes, the 890 acres it covers and 423 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Eagle's own USDA hardiness band, zones 5bUSDA PHZM 2023
- Eagle's own 28°F hard-freeze dates, about Apr 14 and Oct 21 and the ~190-day span between themNOAA 1991–2020 Climate Normals
- 423 documented contamination sites on the federal record near Eagle, the closest Nitrate record about 0.2 miles out from the town centreFederal environmental registers
- Eagle's boundary and the 890 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 Eagle's own centroid, the Southeastern Wisconsin Till PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Eagle's 890 acres read through its county's SSURGO summaryfrom Waukesha County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Waukesha County
- The growing challenges every Wisconsin grower plans around — written at state scale, so they stay on the state guidefrom Wisconsin
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Waukesha County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Eagle's 890 acreswhy one lot differs from the next →
- Which side of Eagle you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 890 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate 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 Eagle-wide figureread your own land →