Rosholt, Wisconsin, 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.
Among the crops suited to this profile: cabbage, cranberry, lavender, and collard greens. The site-level story — soil, sun, drainage — decides the rest.
Even in Rosholt, 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 Rosholt 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 Rosholt — soil, climate, flood, and parcel records. How we handle your address.
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Rosholt — the short answer
Rosholt, Wisconsin: USDA zone 5a, about 165 days between hard freezes, across 672 acres of town.
- USDA zone
- 5a
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 1
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 13
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~165
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 672 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 Rosholt's average, not your lot's — a low corner or a tree line moves it. Against Rosholt's 165-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Rosholt
Each reading below is measured for Rosholt itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredRosholt runs about 165 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
MeasuredRosholt 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 Rosholt is in
Rosholt sits in the North Central Hardwood Forests — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Rosholt's own centroid rather than borrowed from Portage County.
What Grows in Rosholt
Every plant below cleared Rosholt's own zone 5a and its 165-day season. Each card opens that plant's Wisconsin profile. How we score.
Is it too late to plant in Rosholt?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Apr 3; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 1 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 13 — long-season crops need about 90 days of runway, quick greens only 30. The tail of the season still works: sixty-day crops into late summer, quick greens after, garlic last of all.
What's on the federal record near Rosholt
Closest first, within ~10 miles of Rosholt. Listing isn't leaking, and distance isn't exposure.
- RANDOLPH STREET BRIDGEUnderground Storage Tanks · 450 ft
- FIRKUS BUILDING MATUnderground Storage Tanks · 450 ft
- DOBBE MOTOR SALES INCUnderground Storage Tanks · 650 ft
- Stop N Go Food MartUnderground Storage Tanks · 1100 ft
- KEN KLUCKUnderground Storage Tanks · 1200 ft
- Alban StoreUnderground Storage Tanks · 1200 ft
- OUR CORNER BARUnderground Storage Tanks · 1300 ft
- VILLAGE OF ROSHOLTUnderground Storage Tanks · 1300 ft
- LEO HOPPA JRUnderground Storage Tanks · 1300 ft
- AMBROSE STANISLOWSKIUnderground Storage Tanks · 1300 ft
- WISCONSIN LIONS CAMPUnderground Storage Tanks · 1300 ft
- PORTAGE CNTY HWY DEPTUnderground Storage Tanks · 1300 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Rosholt'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 Rosholt.
Total Sites
177
within ~10 miles of Rosholt
Risk Level
Moderate
Highest-severity
1 concentrated animal feeding operation
Sources Checked
within ~10 miles of Rosholt
Severity Distribution
within ~10 miles of Rosholt
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Rosholt, Nitrate runs higher than the national average — 98 sites within ~10 miles of Rosholt. 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 Rosholt
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 Rosholt average
Your land is one point inside Rosholt
Everything above resolves to Rosholt as a whole — one PHZM band and one 28°F frost record, read across 672 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 Rosholt Average
Rosholt Average
- ●USDA Zones 5a, averaged across Rosholt
- ●One soil character for all of Rosholt
- ●Frost dates read at Rosholt's scale: May 1 to Oct 13
YOUR Parcel
- ✓Your exact zone, not Rosholt's 5a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Rosholt
Pull a site-specific report for your exact address in Rosholt, Wisconsin — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Rosholt averages can't show:
We read public map data around Rosholt — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Rosholt average
How we know this about Rosholt
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 Rosholt’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 Rosholt
When does frost risk typically end in Rosholt?
The last hard freeze (28°F) in Rosholt typically lands around May 1, 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 22.
When is the first frost in Rosholt?
The first hard freeze (28°F) in Rosholt typically arrives around Oct 13, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 29, so the watching starts about Sep 13 — about 165 days after the spring freeze cleared.
How long is the growing season in Rosholt?
Measured between 28°F hard freezes, Rosholt sees about 165 frost-free days — roughly May 1 through Oct 13, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 22 to Sep 29, about 130 days.
Is the soil safe to grow vegetables in Rosholt?
The federal record around Rosholt shows 177 documented sites, mostly Nitrate entries (98), the nearest Underground Storage Tanks 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 Rosholt?
From about Sep 13 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 13 (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 13. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Rosholt's scale — its 5a band and its 165-day season. Your yard writes its own version of Rosholt'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 Rosholt’s own scale
6 of the readings below were taken at Rosholt's own scale — its own ~165-day season between 28°F freezes, the 672 acres it covers and 177 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Rosholt's own USDA hardiness band, zones 5aUSDA PHZM 2023
- Rosholt's own 28°F hard-freeze dates, about May 1 and Oct 13 and the ~165-day span between themNOAA 1991–2020 Climate Normals
- 177 documented contamination sites on the federal record near Rosholt, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Rosholt's boundary and the 672 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5a and a ~165-day seasonGrowable Ground crop-matching engine
- The ecoregion at Rosholt's own centroid, the North Central Hardwood ForestsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Rosholt's 672 acres read through its county's SSURGO summaryfrom Portage County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Portage 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 Portage County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Rosholt's 672 acreswhy one lot differs from the next →
- Which side of Rosholt you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 672 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 Rosholt-wide figureread your own land →