Eagarville, Illinois, sits in USDA hardiness zone 6b — a zone band wide enough that plant choice, not possibility, is the interesting question.
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 Eagarville, 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 Eagarville 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 Eagarville — soil, climate, flood, and parcel records. How we handle your address.
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Eagarville — the short answer
Eagarville, Illinois: USDA zone 6b, about 217 days between hard freezes, across 583 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 3
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~217
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 583 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 Eagarville's average, not your lot's — a low corner or a tree line moves it. Against Eagarville's 217-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Eagarville
Each reading below is measured for Eagarville itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredEagarville runs about 217 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
MeasuredEagarville 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 Eagarville is in
Eagarville sits in the Interior River Valleys and Hills — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Eagarville's own centroid rather than borrowed from Macoupin County.
What Grows in Eagarville
Every plant below cleared Eagarville's own zone 6b and its 217-day season. Each card opens that plant's Illinois profile. How we score.
Is it too late to plant in Eagarville?
Almost never — the real question is what to plant next. 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 3 — long-season crops need about 90 days of runway, quick greens only 30. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
What's on the federal record near Eagarville
Closest first, within ~10 miles of Eagarville. Listing isn't leaking, and distance isn't exposure.
- C AND C AUTO BODYBrownfields · 1.2 mi
- Caseys General Stores IncUnderground Storage Tanks · 1.6 mi
- Brunetto Bros MobilUnderground Storage Tanks · 1.6 mi
- Benld City OfUnderground Storage Tanks · 1.8 mi
- Cordera TransferUnderground Storage Tanks · 1.9 mi
- Baima DistributingUnderground Storage Tanks · 1.9 mi
- DOLLAR GENERAL STORE 2859Brownfields · 2.0 mi
- Rt&P AmocoUnderground Storage Tanks · 2.0 mi
- Quality MotorsUnderground Storage Tanks · 2.0 mi
- TJ's Enterprises of BenldUnderground Storage Tanks · 2.0 mi
- Fassero Oil CoUnderground Storage Tanks · 2.0 mi
- QUALITY MOTORSBrownfields · 2.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Eagarville'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 Eagarville.
Total Sites
185
within ~10 miles of Eagarville
Risk Level
Moderate
Highest-severity
6 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Eagarville
Severity Distribution
within ~10 miles of Eagarville
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Eagarville, two things run higher than the national average within ~10 miles of Eagarville — CAFO (5 sites) and PFAS (4 sites). 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.
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 Eagarville
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 Eagarville average
Your land is one point inside Eagarville
Everything above resolves to Eagarville as a whole — one PHZM band and one 28°F frost record, read across 583 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 Eagarville Average
Eagarville Average
- ●USDA Zones 6b, averaged across Eagarville
- ●One soil character for all of Eagarville
- ●Frost dates read at Eagarville's scale: Mar 31 to Nov 3
YOUR Parcel
- ✓Your exact zone, not Eagarville's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Eagarville
Pull a site-specific report for your exact address in Eagarville, Illinois — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Eagarville averages can't show:
We read public map data around Eagarville — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Eagarville average
How we know this about Eagarville
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 Eagarville’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 Eagarville
When does frost risk typically end in Eagarville?
The last hard freeze (28°F) in Eagarville 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 Eagarville?
The first hard freeze (28°F) in Eagarville typically arrives around Nov 3, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 20, so the watching starts about Oct 4 — about 217 days after the spring freeze cleared.
How long is the growing season in Eagarville?
Measured between 28°F hard freezes, Eagarville sees about 217 frost-free days — roughly Mar 31 through Nov 3, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 21 to Oct 20, about 182 days.
Is the soil safe to grow vegetables in Eagarville?
The federal record around Eagarville shows 185 documented sites, mostly Underground Storage Tanks entries (118), the nearest Brownfields record about 1.2 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 Eagarville?
From about Oct 4 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 3 (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 3. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Eagarville's scale — its 6b band and its 217-day season. Your yard writes its own version of Eagarville'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 Eagarville’s own scale
6 of the readings below were taken at Eagarville's own scale — its own ~217-day season between 28°F freezes, the 583 acres it covers and 185 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Eagarville's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Eagarville's own 28°F hard-freeze dates, about Mar 31 and Nov 3 and the ~217-day span between themNOAA 1991–2020 Climate Normals
- 185 documented contamination sites on the federal record near Eagarville, the closest Brownfields record about 1.2 miles out from the town centreFederal environmental registers
- Eagarville's boundary and the 583 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~217-day seasonGrowable Ground crop-matching engine
- The ecoregion at Eagarville'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 Eagarville's 583 acres read through its county's SSURGO summaryfrom Macoupin County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Macoupin 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 Macoupin County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Eagarville's 583 acreswhy one lot differs from the next →
- Which side of Eagarville you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 583 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record about 1.2 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 Eagarville-wide figureread your own land →
More in Illinois
Wider growing context
What grows across IllinoisEagarville sits outside our named growing regions, so Illinois as a whole is its closest context here.
Nearby growing guides