Elburn, Illinois, sits in USDA hardiness zone 5b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Well-matched crops include cabbage, cranberry, lavender, and collard greens, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Even in Elburn, 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 Elburn 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 Elburn — soil, climate, flood, and parcel records. How we handle your address.
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Elburn — the short answer
Elburn, Illinois: USDA zone 5b, about 192 days between hard freezes, across 2K acres of town.
- USDA zone
- 5b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 14
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 23
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~192
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 2K 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 Elburn's average, not your lot's — a low corner or a tree line moves it. Against Elburn's 192-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Elburn
Each reading below is measured for Elburn itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredElburn runs about 192 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
MeasuredElburn 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 Elburn is in
Elburn sits in the Central Corn Belt Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Elburn's own centroid rather than borrowed from Kane County.
What Grows in Elburn
Every plant below cleared Elburn's own zone 5b and its 192-day season. Each card opens that plant's Illinois profile. How we score.
Is it too late to plant in Elburn?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 17; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 14 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 23 — long-season crops need about 90 days of runway, quick greens only 30. As the window narrows, the plantings just get faster — fall brassicas, then greens, then garlic to finish.
Documented around Elburn
Spotted lanternfly documented 6 miles from Elburn, first recorded 2023. What to watch for.
What's on the federal record near Elburn
Closest first, within ~10 miles of Elburn. Listing isn't leaking, and distance isn't exposure.
- ELBURN AUTOBODYBrownfields · 2100 ft
- MULDERS COLLISION CENTERBrownfields · 2400 ft
- Dempsey Ing IncUnderground Storage Tanks · 2500 ft
- AQUATROL INCBrownfields · 2500 ft
- ATM AGGREGATE LOGISTICS INCBrownfields · 0.5 mi
- Thryselius Machining IncUnderground Storage Tanks · 0.6 mi
- Hanson Excavating, Inc.Underground Storage Tanks · 0.6 mi
- 39N 7E- 5.7f1Nitrate · 0.6 mi
- MUNICIPAL MARKING DISTRIBUTORSBrownfields · 0.6 mi
- UNIQUE MACHINEBrownfields · 0.6 mi
- Stover Bros Trucking CompanyUnderground Storage Tanks · 0.6 mi
- Elburn Real Estate, LLCUnderground Storage Tanks · 0.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Elburn'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 Elburn.
Total Sites
746
within ~10 miles of Elburn
Risk Level
Elevated
Highest-severity
6 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Elburn
Severity Distribution
within ~10 miles of Elburn
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Elburn, two things run higher than the national average within ~10 miles of Elburn — Toxics Release Inventory (70 sites) and PFAS (9 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check your specific parcel in Elburn
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 Elburn average
Your land is one point inside Elburn
Everything above resolves to Elburn as a whole — one PHZM band and one 28°F frost record, read across 2K 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 Elburn Average
Elburn Average
- ●USDA Zones 5b, averaged across Elburn
- ●One soil character for all of Elburn
- ●Frost dates read at Elburn's scale: Apr 14 to Oct 23
YOUR Parcel
- ✓Your exact zone, not Elburn's 5b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Elburn
Pull a site-specific report for your exact address in Elburn, Illinois — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Elburn averages can't show:
We read public map data around Elburn — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Elburn average
How we know this about Elburn
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 Elburn’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 Elburn
When does frost risk typically end in Elburn?
The last hard freeze (28°F) in Elburn typically lands around Apr 14, 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 5.
When is the first frost in Elburn?
The first hard freeze (28°F) in Elburn typically arrives around Oct 23, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 9, so the watching starts about Sep 23 — about 192 days after the spring freeze cleared.
How long is the growing season in Elburn?
Measured between 28°F hard freezes, Elburn sees about 192 frost-free days — roughly Apr 14 through Oct 23, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 5 to Oct 9, about 157 days.
Is the soil safe to grow vegetables in Elburn?
The federal record around Elburn is a meaningful one — 746 documented sites, mostly Underground Storage Tanks entries (319), the nearest Brownfields record about 0.4 miles 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 Elburn?
From about Sep 23 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 23 (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 23. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Elburn's scale — its 5b band and its 192-day season. Your yard writes its own version of Elburn'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 Elburn’s own scale
7 of the readings below were taken at Elburn's own scale — its own ~192-day season between 28°F freezes, the 2,400 acres it covers and 746 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Elburn's own USDA hardiness band, zones 5bUSDA PHZM 2023
- Elburn's own 28°F hard-freeze dates, about Apr 14 and Oct 23 and the ~192-day span between themNOAA 1991–2020 Climate Normals
- 746 documented contamination sites on the federal record near Elburn, the closest Brownfields record about 0.4 miles out from the town centreFederal environmental registers
- Elburn's boundary and the 2,400 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5b and a ~192-day seasonGrowable Ground crop-matching engine
- The ecoregion at Elburn's own centroid, the Central Corn Belt PlainsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Elburnlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Elburn's 2,400 acres read through its county's SSURGO summaryfrom Kane County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Kane 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 Kane County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Elburn's 2,400 acreswhy one lot differs from the next →
- Which side of Elburn you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,400 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record about 0.4 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 Elburn-wide figureread your own land →
More in Illinois
Wider growing context
What grows across IllinoisElburn sits outside our named growing regions, so Illinois as a whole is its closest context here.
Nearby growing guides