Camp Douglas, Wisconsin, sits in USDA hardiness zone 4b — a zone band wide enough that plant choice, not possibility, is the interesting question.
A short list that earns its place here — cabbage, cranberry, turkish rocket, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Camp Douglas, 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 Camp Douglas 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 Camp Douglas — soil, climate, flood, and parcel records. How we handle your address.
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Camp Douglas — the short answer
Camp Douglas, Wisconsin: USDA zone 4b, about 163 days between hard freezes, across 643 acres of town.
- USDA zone
- 4b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 30
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 10
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~163
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 643 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 4b is Camp Douglas's average, not your lot's — a low corner or a tree line moves it. Against Camp Douglas's 163-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Camp Douglas
Each reading below is measured for Camp Douglas itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredCamp Douglas runs about 163 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
MeasuredCamp Douglas sits in USDA hardiness zone 4b.
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 Camp Douglas is in
Camp Douglas sits in the North Central Hardwood Forests — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Camp Douglas's own centroid rather than borrowed from Juneau County.
What Grows in Camp Douglas
Every plant below cleared Camp Douglas's own zone 4b and its 163-day season. Each card opens that plant's Wisconsin profile. How we score.
Is it too late to plant in Camp Douglas?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Apr 2; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 30 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 10 — 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 Camp Douglas
Closest first, within ~10 miles of Camp Douglas. Listing isn't leaking, and distance isn't exposure.
- Camp Douglas Farmers Co OpUnderground Storage Tanks · 350 ft
- LESTER GEORGESONUnderground Storage Tanks · 600 ft
- TOWNSHIP OF CLIFTON GARAGEUnderground Storage Tanks · 600 ft
- VOLK FIELD BLDG #601Underground Storage Tanks · 600 ft
- VOLK FIELD BLDG #528Underground Storage Tanks · 600 ft
- VOLK FIELD BLDG #933Underground Storage Tanks · 600 ft
- Cutler Cranberry CompanyUnderground Storage Tanks · 600 ft
- COMBINED SUPPORT MAINTENANCE SUnderground Storage Tanks · 600 ft
- WI ARMY NATIONAL GUARDUnderground Storage Tanks · 600 ft
- VOLK FIELD BLDG #613Underground Storage Tanks · 600 ft
- HOWARD BARNHARSTUnderground Storage Tanks · 600 ft
- CAMP DOUGLAS MICROWAVEUnderground Storage Tanks · 600 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Camp Douglas'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 Camp Douglas.
Total Sites
135
within ~10 miles of Camp Douglas
Risk Level
Elevated
Highest-severity
2 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Camp Douglas
Severity Distribution
within ~10 miles of Camp Douglas
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Camp Douglas, Underground Storage Tanks runs higher than the national average — 101 sites within ~10 miles of Camp Douglas. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Camp Douglas
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 Camp Douglas average
Your land is one point inside Camp Douglas
Everything above resolves to Camp Douglas as a whole — one PHZM band and one 28°F frost record, read across 643 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 Camp Douglas Average
Camp Douglas Average
- ●USDA Zones 4b, averaged across Camp Douglas
- ●One soil character for all of Camp Douglas
- ●Frost dates read at Camp Douglas's scale: Apr 30 to Oct 10
YOUR Parcel
- ✓Your exact zone, not Camp Douglas's 4b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Camp Douglas
Pull a site-specific report for your exact address in Camp Douglas, Wisconsin — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Camp Douglas averages can't show:
We read public map data around Camp Douglas — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Camp Douglas average
How we know this about Camp Douglas
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 Camp Douglas’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 Camp Douglas
When does frost risk typically end in Camp Douglas?
The last hard freeze (28°F) in Camp Douglas typically lands around Apr 30, 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 21.
When is the first frost in Camp Douglas?
The first hard freeze (28°F) in Camp Douglas typically arrives around Oct 10, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 26, so the watching starts about Sep 10 — about 163 days after the spring freeze cleared.
How long is the growing season in Camp Douglas?
Measured between 28°F hard freezes, Camp Douglas sees about 163 frost-free days — roughly Apr 30 through Oct 10, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 21 to Sep 26, about 128 days.
Is the soil safe to grow vegetables in Camp Douglas?
The federal record around Camp Douglas is a meaningful one — 135 documented sites, mostly Underground Storage Tanks entries (101), the nearest Underground Storage Tanks record under a tenth of a mile 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 Camp Douglas?
From about Sep 10 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 10 (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 10. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Camp Douglas's scale — its 4b band and its 163-day season. Your yard writes its own version of Camp Douglas'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 Camp Douglas’s own scale
6 of the readings below were taken at Camp Douglas's own scale — its own ~163-day season between 28°F freezes, the 643 acres it covers and 135 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Camp Douglas's own USDA hardiness band, zones 4bUSDA PHZM 2023
- Camp Douglas's own 28°F hard-freeze dates, about Apr 30 and Oct 10 and the ~163-day span between themNOAA 1991–2020 Climate Normals
- 135 documented contamination sites on the federal record near Camp Douglas, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Camp Douglas's boundary and the 643 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 4b and a ~163-day seasonGrowable Ground crop-matching engine
- The ecoregion at Camp Douglas'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 Camp Douglas's 643 acres read through its county's SSURGO summaryfrom Juneau County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Juneau 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 Juneau County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Camp Douglas's 643 acreswhy one lot differs from the next →
- Which side of Camp Douglas you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 643 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 Camp Douglas-wide figureread your own land →
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