Teutopolis, Illinois, sits in USDA hardiness zone 6b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
A short list that earns its place here — cabbage, hazelnut, lavender, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Teutopolis, 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 Teutopolis 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 Teutopolis — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Teutopolis — the short answer
Teutopolis, Illinois: USDA zone 6b, about 216 days between hard freezes, across 1K acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 31
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 2
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~216
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 1K 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 6b is Teutopolis's average, not your lot's — a low corner or a tree line moves it. Against Teutopolis's 216-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Teutopolis
Each reading below is measured for Teutopolis itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredTeutopolis runs about 216 days between hard freezes — a long growing season.
There is slack for succession plantings and slow-finishing crops: many vegetables can be sown twice, and the heat-lovers have time to ripen fully.
Plan a second sowing of quick crops after the first comes out, and use the fall window most gardeners let sit idle.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredTeutopolis sits in USDA hardiness zone 6b.
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 Teutopolis is in
Teutopolis sits in the Interior River Valleys and Hills — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Teutopolis's own centroid rather than borrowed from Effingham County.
What Grows in Teutopolis
Every plant below cleared Teutopolis's own zone 6b and its 216-day season. Each card opens that plant's Illinois profile. How we score.
Is it too late to plant in Teutopolis?
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 3; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 31 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 2 — long-season crops need about 90 days of runway, quick greens only 30. Here the season winds down slowly: late sowings, a real autumn harvest, and garlic in the ground before the first hard freeze.
What's on the federal record near Teutopolis
Closest first, within ~10 miles of Teutopolis. Listing isn't leaking, and distance isn't exposure.
- Advance TransUnderground Storage Tanks · 300 ft
- Charles Heuerman TruckingUnderground Storage Tanks · 300 ft
- Casey's General Store #1832Underground Storage Tanks · 450 ft
- J.B. Esker & Sons, Inc.Underground Storage Tanks · 750 ft
- SIEMER MILLING COMPANY - TEUTOPOLIS PLANTToxics Release Inventory · 1400 ft
- SIEMER MILLING COBrownfields · 1500 ft
- T-Town Drive ThruUnderground Storage Tanks · 1600 ft
- STEVENS INDUSTRIESBrownfields · 1700 ft
- Wessel's GroceryUnderground Storage Tanks · 1700 ft
- Stevens Industries IncUnderground Storage Tanks · 1800 ft
- Miltrac CorporationUnderground Storage Tanks · 2500 ft
- MILTRAC CORPBrownfields · 2500 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Teutopolis'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 Teutopolis.
Total Sites
234
within ~10 miles of Teutopolis
Risk Level
Elevated
Highest-severity
2 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Teutopolis
Severity Distribution
within ~10 miles of Teutopolis
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Teutopolis, CAFO runs higher than the national average — 12 sites within ~10 miles of Teutopolis. That's not a problem with your land — it's information about it.
CAFO: CAFOs pose a different contamination profile than chemical sources.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Check your specific parcel in Teutopolis
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 Teutopolis average
Your land is one point inside Teutopolis
Everything above resolves to Teutopolis as a whole — one PHZM band and one 28°F frost record, read across 1K 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 Teutopolis Average
Teutopolis Average
- ●USDA Zones 6b, averaged across Teutopolis
- ●One soil character for all of Teutopolis
- ●Frost dates read at Teutopolis's scale: Mar 31 to Nov 2
YOUR Parcel
- ✓Your exact zone, not Teutopolis's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Teutopolis
Pull a site-specific report for your exact address in Teutopolis, Illinois — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Teutopolis averages can't show:
We read public map data around Teutopolis — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Teutopolis average
How we know this about Teutopolis
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 Teutopolis’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 Teutopolis
When does frost risk typically end in Teutopolis?
The last hard freeze (28°F) in Teutopolis typically lands around Mar 31, 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 Apr 21.
When is the first frost in Teutopolis?
The first hard freeze (28°F) in Teutopolis typically arrives around Nov 2, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 19, so the watching starts about Oct 3 — about 216 days after the spring freeze cleared.
How long is the growing season in Teutopolis?
Measured between 28°F hard freezes, Teutopolis sees about 216 frost-free days — roughly Mar 31 through Nov 2, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 21 to Oct 19, about 181 days.
Is the soil safe to grow vegetables in Teutopolis?
The federal record around Teutopolis is a meaningful one — 234 documented sites, mostly Underground Storage Tanks entries (141), 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 Teutopolis?
From about Oct 3 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 Nov 2 (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 Nov 2. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Teutopolis's scale — its 6b band and its 216-day season. Your yard writes its own version of Teutopolis'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 Teutopolis’s own scale
6 of the readings below were taken at Teutopolis's own scale — its own ~216-day season between 28°F freezes, the 1,308 acres it covers and 234 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Teutopolis's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Teutopolis's own 28°F hard-freeze dates, about Mar 31 and Nov 2 and the ~216-day span between themNOAA 1991–2020 Climate Normals
- 234 documented contamination sites on the federal record near Teutopolis, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Teutopolis's boundary and the 1,308 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~216-day seasonGrowable Ground crop-matching engine
- The ecoregion at Teutopolis's own centroid, the Interior River Valleys and HillsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Teutopolis's 1,308 acres read through its county's SSURGO summaryfrom Effingham County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Effingham County
- The growing challenges every Illinois grower plans around — written at state scale, so they stay on the state guidefrom Illinois
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Effingham County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Teutopolis's 1,308 acreswhy one lot differs from the next →
- Which side of Teutopolis you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,308 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 Teutopolis-wide figureread your own land →
More in Illinois
Wider growing context
What grows across IllinoisTeutopolis sits outside our named growing regions, so Illinois as a whole is its closest context here.