Moline, 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 Moline, 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 Moline 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 Moline — soil, climate, flood, and parcel records. How we handle your address.
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Moline — the short answer
Moline, Illinois: USDA zone 5b, about 204 days between hard freezes, across 11K acres of city.
- USDA zone
- 5b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 8
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 29
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~204
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 11K 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 Moline's average, not your lot's — a low corner or a tree line moves it. Against Moline's 204-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Moline
Each reading below is measured for Moline itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredMoline runs about 204 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
MeasuredMoline 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 Moline is in
Moline sits in the Interior River Valleys and Hills — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Moline's own centroid rather than borrowed from Rock Island County.
What Grows in Moline
Every plant below cleared Moline's own zone 5b and its 204-day season. Each card opens that plant's Illinois profile. How we score.
Is it too late to plant in Moline?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 11; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 8 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 29 — 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.
What's on the federal record near Moline
Closest first, within ~10 miles of Moline. Listing isn't leaking, and distance isn't exposure.
- MOLINEPFAS · 1800 ft
- Jems Gas StationUnderground Storage Tanks · 0.5 mi
- BURKE CLEANERSBrownfields · 0.7 mi
- Express Lane ShellUnderground Storage Tanks · 0.7 mi
- DOLLAR GENERAL STORE 7368Brownfields · 0.7 mi
- MOLINE ENGINE SVC INCBrownfields · 0.7 mi
- Moline Gas Food and LiquorUnderground Storage Tanks · 0.7 mi
- AMERICAN SPEEDBrownfields · 0.7 mi
- National Petroleum #169Underground Storage Tanks · 0.7 mi
- DUTCHWAY DRY CLEANERSBrownfields · 0.7 mi
- 7-Eleven #34459Underground Storage Tanks · 0.7 mi
- Forest Hill ServiceUnderground Storage Tanks · 0.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Moline'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 Moline.
Total Sites
1,277
within ~10 miles of Moline
Risk Level
Elevated
Highest-severity
14 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Moline
Severity Distribution
within ~10 miles of Moline
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •TRI facilities report what they release. Check the wind — downwind beds catch more of it.
Check your specific parcel in Moline
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 Moline average
Your land is one point inside Moline
Everything above resolves to Moline as a whole — one PHZM band and one 28°F frost record, read across 11K 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 Moline Average
Moline Average
- ●USDA Zones 5b, averaged across Moline
- ●One soil character for all of Moline
- ●Frost dates read at Moline's scale: Apr 8 to Oct 29
YOUR Parcel
- ✓Your exact zone, not Moline's 5b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Moline
Pull a site-specific report for your exact address in Moline, Illinois — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Moline averages can't show:
We read public map data around Moline — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Moline average
How we know this about Moline
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 Moline’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 Moline
When does frost risk typically end in Moline?
The last hard freeze (28°F) in Moline typically lands around Apr 8, 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 29.
When is the first frost in Moline?
The first hard freeze (28°F) in Moline typically arrives around Oct 29, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 15, so the watching starts about Sep 29 — about 204 days after the spring freeze cleared.
How long is the growing season in Moline?
Measured between 28°F hard freezes, Moline sees about 204 frost-free days — roughly Apr 8 through Oct 29, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 29 to Oct 15, about 169 days.
Is the soil safe to grow vegetables in Moline?
The federal record around Moline is a meaningful one — 1,277 documented sites, mostly Underground Storage Tanks entries (754), the nearest PFAS 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 Moline?
From about Sep 29 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 29 (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 29. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Moline's scale — its 5b band and its 204-day season. Your yard writes its own version of Moline'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 Moline’s own scale
6 of the readings below were taken at Moline's own scale — its own ~204-day season between 28°F freezes, the 10,722 acres it covers and 1,277 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Moline's own USDA hardiness band, zones 5bUSDA PHZM 2023
- Moline's own 28°F hard-freeze dates, about Apr 8 and Oct 29 and the ~204-day span between themNOAA 1991–2020 Climate Normals
- 1,277 documented contamination sites on the federal record near Moline, the closest PFAS record about 0.3 miles out from the town centreFederal environmental registers
- Moline's boundary and the 10,722 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5b and a ~204-day seasonGrowable Ground crop-matching engine
- The ecoregion at Moline'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 Moline's 10,722 acres read through its county's SSURGO summaryfrom Rock Island County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Rock Island 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 Rock Island County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Moline's 10,722 acreswhy one lot differs from the next →
- Which side of Moline you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 10,722 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest PFAS 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 Moline-wide figureread your own land →
More in Illinois
Wider growing context
What grows across IllinoisMoline sits outside our named growing regions, so Illinois as a whole is its closest context here.
Nearby growing guides