Huntley, Illinois, sits in USDA hardiness zone 5b — a zone band wide enough that plant choice, not possibility, is the interesting question.
Among the crops suited to this profile: cabbage, cranberry, lavender, and collard greens. The site-level story — soil, sun, drainage — decides the rest.
Even in Huntley, 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 Huntley 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 Huntley — soil, climate, flood, and parcel records. How we handle your address.
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Huntley — the short answer
Huntley, Illinois: USDA zone 5b, about 192 days between hard freezes, across 9K acres of town.
- USDA zone
- 5b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 13
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 22
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~192
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town 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 5b is Huntley's average, not your lot's — a low corner or a tree line moves it. Against Huntley's 192-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Huntley
Each reading below is measured for Huntley itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredHuntley 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
MeasuredHuntley 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 Huntley is in
Huntley sits in the Central Corn Belt Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Huntley's own centroid, and it is not what its county reads: McHenry County is mostly Southeastern Wisconsin Till Plains. The wider page above you is answering a different question about different ground.
What Grows in Huntley
Every plant below cleared Huntley'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 Huntley?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Mar 16; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 13 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 22 — long-season crops need about 90 days of runway, quick greens only 30. The tail of the season still works: sixty-day crops into late summer, quick greens after, garlic last of all.
Documented around Huntley
Spotted lanternfly documented 19 miles from Huntley, first recorded 2023. What to watch for.
What's on the federal record near Huntley
Closest first, within ~10 miles of Huntley. Listing isn't leaking, and distance isn't exposure.
- Huntley CSD 158Underground Storage Tanks · 1600 ft
- CHICAGO INTERNATIONAL TRUCKSBrownfields · 1700 ft
- Chicago International TrucksUnderground Storage Tanks · 1900 ft
- Koubenec Mtr Ser/Div Dfc TransUnderground Storage Tanks · 2000 ft
- Kishwaukee Lift StationUnderground Storage Tanks · 0.5 mi
- JM Food Shop, Inc.Underground Storage Tanks · 0.5 mi
- HUNTLEY COLLISION CENTER INCBrownfields · 0.6 mi
- Dean Foods Co.Underground Storage Tanks · 0.6 mi
- DEAN DAIRY HOLDINGS LLCToxics Release Inventory · 0.6 mi
- Huntley Park DistUnderground Storage Tanks · 0.6 mi
- Zimmerman Wayne EUnderground Storage Tanks · 0.7 mi
- GERBER COLLISION & GLASSBrownfields · 0.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Huntley'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 Huntley.
Sources Checked
within ~10 miles of Huntley
Severity Distribution
within ~10 miles of Huntley
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Huntley, two things run higher than the national average within ~10 miles of Huntley — Toxics Release Inventory (82 sites) and PFAS (10 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 Huntley
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 Huntley average
Your land is one point inside Huntley
Everything above resolves to Huntley 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 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 Huntley Average
Huntley Average
- ●USDA Zones 5b, averaged across Huntley
- ●One soil character for all of Huntley
- ●Frost dates read at Huntley's scale: Apr 13 to Oct 22
YOUR Parcel
- ✓Your exact zone, not Huntley's 5b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Huntley
Pull a site-specific report for your exact address in Huntley, Illinois — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Huntley averages can't show:
We read public map data around Huntley — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Huntley average
How we know this about Huntley
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 Huntley’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 Huntley
When does frost risk typically end in Huntley?
The last hard freeze (28°F) in Huntley typically lands around Apr 13, 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 4.
When is the first frost in Huntley?
The first hard freeze (28°F) in Huntley typically arrives around Oct 22, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 8, so the watching starts about Sep 22 — about 192 days after the spring freeze cleared.
How long is the growing season in Huntley?
Measured between 28°F hard freezes, Huntley sees about 192 frost-free days — roughly Apr 13 through Oct 22, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 4 to Oct 8, about 157 days.
Is the soil safe to grow vegetables in Huntley?
The federal record around Huntley is a meaningful one — 928 documented sites, mostly Underground Storage Tanks entries (402), the nearest Underground Storage Tanks record about 0.3 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 Huntley?
From about Sep 22 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 22 (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 22. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Huntley's scale — its 5b band and its 192-day season. Your yard writes its own version of Huntley'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 Huntley’s own scale
7 of the readings below were taken at Huntley's own scale — its own ~192-day season between 28°F freezes, the 9,377 acres it covers and 928 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Huntley's own USDA hardiness band, zones 5bUSDA PHZM 2023
- Huntley's own 28°F hard-freeze dates, about Apr 13 and Oct 22 and the ~192-day span between themNOAA 1991–2020 Climate Normals
- 928 documented contamination sites on the federal record near Huntley, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- Huntley's boundary and the 9,377 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5b and a ~192-day seasonGrowable Ground crop-matching engine
- Huntley sits in the Central Corn Belt Plains — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Huntleylydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Huntley's 9,377 acres read through its county's SSURGO summaryfrom McHenry County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom McHenry 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 McHenry County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Huntley's 9,377 acreswhy one lot differs from the next →
- Which side of Huntley you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 9,377 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 Huntley-wide figureread your own land →
More in Illinois
Wider growing context
What grows across IllinoisHuntley sits outside our named growing regions, so Illinois as a whole is its closest context here.
Nearby growing guides