East St. Louis, Illinois, sits in USDA hardiness zone 7a — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Expect cabbage, hazelnut, california poppy, and collard greens to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in East St. Louis, 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 East St. Louis 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 East St. Louis — soil, climate, flood, and parcel records. How we handle your address.
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East St. Louis — the short answer
East St. Louis, Illinois: USDA zone 7a, about 232 days between hard freezes, across 9K acres of city.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 24
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 11
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~232
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 9K 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 7a is East St. Louis's average, not your lot's — a low corner or a tree line moves it. Against East St. Louis's 232-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in East St. Louis
Each reading below is measured for East St. Louis itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredEast St. Louis runs about 232 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
MeasuredEast St. Louis sits in USDA hardiness zone 7a.
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 East St. Louis is in
East St. Louis sits in the Interior River Valleys and Hills — EPA Level III, inside the wider Eastern Temperate Forests. That is read at East St. Louis's own centroid rather than borrowed from St. Clair County.
What Grows in East St. Louis
Every plant below cleared East St. Louis's own zone 7a and its 232-day season. Each card opens that plant's Illinois profile. How we score.
Is it too late to plant in East St. Louis?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Feb 24; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 24 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 11 — 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.
Documented around East St. Louis
Survey cells within 31 miles of East St. Louis checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 239 miles off. What to watch for.
What's on the federal record near East St. Louis
Closest first, within ~10 miles of East St. Louis. Listing isn't leaking, and distance isn't exposure.
- Jay's OneUnderground Storage Tanks · 750 ft
- CVS PHARMACY #ILEAS1B01Brownfields · 800 ft
- State Street ShellUnderground Storage Tanks · 900 ft
- City GarageUnderground Storage Tanks · 1000 ft
- East St. Louis Public WorksUnderground Storage Tanks · 1200 ft
- Illinois Bell Telephone CompanyUnderground Storage Tanks · 1200 ft
- BRENNTAG MID-SOUTH, INC.Toxics Release Inventory · 1500 ft
- East St Louis/Housing AuthUnderground Storage Tanks · 1900 ft
- CARR LEAD PRODUCTSSuperfund · 2000 ft
- Aratex Service IncUnderground Storage Tanks · 2200 ft
- MILITARY & NAVAL DEPTBrownfields · 2200 ft
- FMS 15 East St. LouisUnderground Storage Tanks · 2200 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from East St. Louis'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 East St. Louis.
Sources Checked
within ~10 miles of East St. Louis
Severity Distribution
within ~10 miles of East St. Louis
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around East St. Louis, two things run higher than the national average within ~10 miles of East St. Louis — Superfund (74 sites) and Toxics Release Inventory (257 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in East St. Louis
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 East St. Louis average
Your land is one point inside East St. Louis
Everything above resolves to East St. Louis as a whole — one PHZM band and one 28°F frost record, read across 9K 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 city 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 East St. Louis Average
East St. Louis Average
- ●USDA Zones 7a, averaged across East St. Louis
- ●One soil character for all of East St. Louis
- ●Frost dates read at East St. Louis's scale: Mar 24 to Nov 11
YOUR Parcel
- ✓Your exact zone, not East St. Louis's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in East St. Louis
Pull a site-specific report for your exact address in East St. Louis, Illinois — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that East St. Louis averages can't show:
We read public map data around East St. Louis — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the East St. Louis average
How we know this about East St. Louis
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at East St. Louis’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 city grain anywhere on this page — there is no city-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 East St. Louis
When does frost risk typically end in East St. Louis?
The last hard freeze (28°F) in East St. Louis typically lands around Mar 24, 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 14.
When is the first frost in East St. Louis?
The first hard freeze (28°F) in East St. Louis typically arrives around Nov 11, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 28, so the watching starts about Oct 12 — about 232 days after the spring freeze cleared.
How long is the growing season in East St. Louis?
Measured between 28°F hard freezes, East St. Louis sees about 232 frost-free days — roughly Mar 24 through Nov 11, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 14 to Oct 28, about 197 days.
Is the soil safe to grow vegetables in East St. Louis?
The federal record around East St. Louis runs heavier than most — 3,165 documented sites, mostly Underground Storage Tanks entries (1,923), the nearest Underground Storage Tanks record about 0.1 miles out — so test the soil before planting food in the ground, and raised beds with clean imported soil grow well in the meantime. Even here, proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what's recorded and where.
How do I protect my plants from frost in East St. Louis?
From about Oct 12 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 11 (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 11. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at East St. Louis's scale — its 7a band and its 232-day season. Your yard writes its own version of East St. Louis'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 East St. Louis’s own scale
7 of the readings below were taken at East St. Louis's own scale — its own ~232-day season between 28°F freezes, the 8,912 acres it covers and 3,165 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- East St. Louis's own USDA hardiness band, zones 7aUSDA PHZM 2023
- East St. Louis's own 28°F hard-freeze dates, about Mar 24 and Nov 11 and the ~232-day span between themNOAA 1991–2020 Climate Normals
- 3,165 documented contamination sites on the federal record near East St. Louis, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
- East St. Louis's boundary and the 8,912 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~232-day seasonGrowable Ground crop-matching engine
- The ecoregion at East St. Louis's own centroid, the Interior River Valleys and HillsUS EPA Level III Ecoregions
- Lanternfly survey cells around East St. Louis checked, none carrying a detectionlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so East St. Louis's 8,912 acres read through its county's SSURGO summaryfrom St. Clair County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom St. Clair 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 St. Clair County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among East St. Louis's 8,912 acreswhy one lot differs from the next →
- Which side of East St. Louis you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 8,912 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.1 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 East St. Louis-wide figureread your own land →
More in Illinois
Wider growing context
What grows across IllinoisEast St. Louis sits outside our named growing regions, so Illinois as a whole is its closest context here.
Nearby growing guides