Atkinson, Illinois, sits in USDA hardiness zone 5b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
The conditions favor cabbage, cranberry, lavender, and collard greens, among others — though every individual site edits that list with its own soil, sun, and drainage.
Even in Atkinson, 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 Atkinson 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 Atkinson — soil, climate, flood, and parcel records. How we handle your address.
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Atkinson — the short answer
Atkinson, Illinois: USDA zone 5b, about 201 days between hard freezes, across 1K acres of town.
- USDA zone
- 5b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 9
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 27
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~201
- 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 5b is Atkinson's average, not your lot's — a low corner or a tree line moves it. Against Atkinson's 201-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Atkinson
Each reading below is measured for Atkinson itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredAtkinson runs about 201 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
MeasuredAtkinson 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 Atkinson is in
Atkinson sits in the Central Corn Belt Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Atkinson's own centroid rather than borrowed from Henry County.
What Grows in Atkinson
Every plant below cleared Atkinson's own zone 5b and its 201-day season. Each card opens that plant's Illinois profile. How we score.
Is it too late to plant in Atkinson?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 12; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 9 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 27 — long-season crops need about 90 days of runway, quick greens only 30. A long window like this one runs successions deep into fall — and even its last weeks take quick greens and garlic.
What's on the federal record near Atkinson
Closest first, within ~10 miles of Atkinson. Listing isn't leaking, and distance isn't exposure.
- HEINHOLD HOG MARKETCAFO · 1400 ft
- Wyffels Hybrids IncUnderground Storage Tanks · 1500 ft
- Casey's General Store #1323Underground Storage Tanks · 2400 ft
- Godfather Wrecker IncUnderground Storage Tanks · 0.5 mi
- RVJ FoodmartUnderground Storage Tanks · 0.5 mi
- Atkinson Grain & Fert IncUnderground Storage Tanks · 0.5 mi
- Atkinson Village OfUnderground Storage Tanks · 0.6 mi
- JMP Atkinson Petroleum, Inc.Underground Storage Tanks · 0.6 mi
- SunshineUnderground Storage Tanks · 0.6 mi
- Ellis Implt CoUnderground Storage Tanks · 0.7 mi
- HI QUALITY FORD SALESBrownfields · 0.7 mi
- Hi-Qualtiy Ford SalesUnderground Storage Tanks · 0.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Atkinson'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 Atkinson.
Total Sites
118
within ~10 miles of Atkinson
Risk Level
Moderate
Highest-severity
3 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Atkinson
Severity Distribution
within ~10 miles of Atkinson
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Atkinson, CAFO runs higher than the national average — 10 sites within ~10 miles of Atkinson. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
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 Atkinson
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 Atkinson average
Your land is one point inside Atkinson
Everything above resolves to Atkinson 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 Atkinson Average
Atkinson Average
- ●USDA Zones 5b, averaged across Atkinson
- ●One soil character for all of Atkinson
- ●Frost dates read at Atkinson's scale: Apr 9 to Oct 27
YOUR Parcel
- ✓Your exact zone, not Atkinson's 5b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Atkinson
Pull a site-specific report for your exact address in Atkinson, Illinois — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Atkinson averages can't show:
We read public map data around Atkinson — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Atkinson average
How we know this about Atkinson
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 Atkinson’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 Atkinson
When does frost risk typically end in Atkinson?
The last hard freeze (28°F) in Atkinson typically lands around Apr 9, 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 30.
When is the first frost in Atkinson?
The first hard freeze (28°F) in Atkinson typically arrives around Oct 27, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 13, so the watching starts about Sep 27 — about 201 days after the spring freeze cleared.
How long is the growing season in Atkinson?
Measured between 28°F hard freezes, Atkinson sees about 201 frost-free days — roughly Apr 9 through Oct 27, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 30 to Oct 13, about 166 days.
Is the soil safe to grow vegetables in Atkinson?
The federal record around Atkinson shows 118 documented sites, mostly Underground Storage Tanks entries (70), the nearest CAFO record about 0.3 miles 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 Atkinson?
From about Sep 27 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 27 (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 27. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Atkinson's scale — its 5b band and its 201-day season. Your yard writes its own version of Atkinson'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 Atkinson’s own scale
6 of the readings below were taken at Atkinson's own scale — its own ~201-day season between 28°F freezes, the 1,220 acres it covers and 118 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Atkinson's own USDA hardiness band, zones 5bUSDA PHZM 2023
- Atkinson's own 28°F hard-freeze dates, about Apr 9 and Oct 27 and the ~201-day span between themNOAA 1991–2020 Climate Normals
- 118 documented contamination sites on the federal record near Atkinson, the closest CAFO record about 0.3 miles out from the town centreFederal environmental registers
- Atkinson's boundary and the 1,220 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5b and a ~201-day seasonGrowable Ground crop-matching engine
- The ecoregion at Atkinson's own centroid, the Central Corn Belt PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Atkinson's 1,220 acres read through its county's SSURGO summaryfrom Henry County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Henry 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 Henry County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Atkinson's 1,220 acreswhy one lot differs from the next →
- Which side of Atkinson you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,220 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest CAFO record about 0.3 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 Atkinson-wide figureread your own land →
More in Illinois
Wider growing context
What grows across IllinoisAtkinson sits outside our named growing regions, so Illinois as a whole is its closest context here.