Gary, Indiana, sits in USDA hardiness zone 6a — a zone band wide enough that plant choice, not possibility, is the interesting question.
The conditions favor cabbage, blueberry, lavender, and collard greens, among others — though every individual site edits that list with its own soil, sun, and drainage.
Even in Gary, 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 Gary 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 Gary — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Gary — the short answer
Gary, Indiana: USDA zone 6a, about 224 days between hard freezes, across 32K acres of city.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 3
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 13
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~224
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 32K 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 6a is Gary's average, not your lot's — a low corner or a tree line moves it. Against Gary's 224-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Gary
Each reading below is measured for Gary itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredGary runs about 224 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
MeasuredGary sits in USDA hardiness zone 6a.
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 Gary is in
Gary sits in the Central Corn Belt Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Gary's own centroid rather than borrowed from Lake County.
What Grows in Gary
Every plant below cleared Gary's own zone 6a and its 224-day season. Each card opens that plant's Indiana profile. How we score.
Is it too late to plant in Gary?
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 6; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 3 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 13 — long-season crops need about 90 days of runway, quick greens only 30. There is slack in a calendar like this — late plantings, second rounds of favorites, and a fall bench that keeps beds working.
Documented around Gary
Spotted lanternfly documented 15 miles from Gary, first recorded 2023. What to watch for.
What's on the federal record near Gary
Closest first, within ~10 miles of Gary. Listing isn't leaking, and distance isn't exposure.
- NORTON ELEMENTARY SCHOOLBrownfields · 750 ft
- Great Lakes Cooling & Heating IncorporatedUnderground Storage Tanks · 800 ft
- GARY DOG POUND SITESuperfund · 1500 ft
- Organizational Maint Shop 13Underground Storage Tanks · 1500 ft
- GARY GARAGEUnderground Storage Tanks · 1500 ft
- GARY CITY OFBrownfields · 1500 ft
- SaveUnderground Storage Tanks · 1600 ft
- DIXIE DAIRY COToxics Release Inventory · 1600 ft
- Dixie Dairy CompanyUnderground Storage Tanks · 1700 ft
- FROEBEL HIGH SCHOOLBrownfields · 1800 ft
- Salvation ArmyUnderground Storage Tanks · 1900 ft
- Gary City GovernmentUnderground Storage Tanks · 2100 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Gary'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 Gary.
Sources Checked
within ~10 miles of Gary
Severity Distribution
within ~10 miles of Gary
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Gary, two things run higher than the national average within ~10 miles of Gary — Superfund (51 sites) and Toxics Release Inventory (135 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 Gary
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 Gary average
Your land is one point inside Gary
Everything above resolves to Gary as a whole — one PHZM band and one 28°F frost record, read across 32K 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 Gary Average
Gary Average
- ●USDA Zones 6a, averaged across Gary
- ●One soil character for all of Gary
- ●Frost dates read at Gary's scale: Apr 3 to Nov 13
YOUR Parcel
- ✓Your exact zone, not Gary's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Gary
Pull a site-specific report for your exact address in Gary, Indiana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Gary averages can't show:
We read public map data around Gary — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Gary average
How we know this about Gary
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 Gary’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 Gary
When does frost risk typically end in Gary?
The last hard freeze (28°F) in Gary typically lands around Apr 3, 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 24.
When is the first frost in Gary?
The first hard freeze (28°F) in Gary typically arrives around Nov 13, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 30, so the watching starts about Oct 14 — about 224 days after the spring freeze cleared.
How long is the growing season in Gary?
Measured between 28°F hard freezes, Gary sees about 224 frost-free days — roughly Apr 3 through Nov 13, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 24 to Oct 30, about 189 days.
Is the soil safe to grow vegetables in Gary?
The federal record around Gary runs heavier than most — 2,174 documented sites, mostly Underground Storage Tanks entries (1,054), the nearest Brownfields 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 Gary?
From about Oct 14 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 13 (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 13. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Gary's scale — its 6a band and its 224-day season. Your yard writes its own version of Gary'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 Gary’s own scale
7 of the readings below were taken at Gary's own scale — its own ~224-day season between 28°F freezes, the 31,956 acres it covers and 2,174 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Gary's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Gary's own 28°F hard-freeze dates, about Apr 3 and Nov 13 and the ~224-day span between themNOAA 1991–2020 Climate Normals
- 2,174 documented contamination sites on the federal record near Gary, the closest Brownfields record about 0.1 miles out from the town centreFederal environmental registers
- Gary's boundary and the 31,956 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~224-day seasonGrowable Ground crop-matching engine
- The ecoregion at Gary's own centroid, the Central Corn Belt PlainsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Garylydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Gary's 31,956 acres read through its county's SSURGO summaryfrom Lake County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Lake County
- The growing challenges every Indiana grower plans around — written at state scale, so they stay on the state guidefrom Indiana
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Lake County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Gary's 31,956 acreswhy one lot differs from the next →
- Which side of Gary you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 31,956 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields 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 Gary-wide figureread your own land →