Oakland City, Indiana, sits in USDA hardiness zone 6b — a zone band wide enough that plant choice, not possibility, is the interesting question.
On paper, cabbage, hazelnut, lavender, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Oakland City, 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 Oakland City 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 Oakland City — soil, climate, flood, and parcel records. How we handle your address.
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Oakland City — the short answer
Oakland City, Indiana: USDA zone 6b, about 225 days between hard freezes, across 653 acres of city.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 28
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 8
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~225
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 653 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 6b is Oakland City's average, not your lot's — a low corner or a tree line moves it. Against Oakland City's 225-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Oakland City
Each reading below is measured for Oakland City itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredOakland City runs about 225 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
MeasuredOakland City sits in USDA hardiness zone 6b.
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 Oakland City is in
Oakland City sits in the Interior River Valleys and Hills — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Oakland City's own centroid rather than borrowed from Gibson County.
What Grows in Oakland City
Every plant below cleared Oakland City's own zone 6b and its 225-day season. Each card opens that plant's Indiana profile. How we score.
Is it too late to plant in Oakland City?
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 28; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 28 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 8 — long-season crops need about 90 days of runway, quick greens only 30. A long window like this one runs successions deep into fall — and even its last weeks take quick greens and garlic.
Documented around Oakland City
Survey cells within 31 miles of Oakland City checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 133 miles off. What to watch for.
What's on the federal record near Oakland City
Closest first, within ~10 miles of Oakland City. Listing isn't leaking, and distance isn't exposure.
- OAKLAND CITY COLLEGEBrownfields · 650 ft
- CINERGY PUBLIC SERVICE OF INDIANA OAKLAND CITY OFFICEUnderground Storage Tanks · 750 ft
- WOOD C SMITH CHEVROLET INCORPORATEDUnderground Storage Tanks · 800 ft
- PAYDAY CASH ADVANCEUnderground Storage Tanks · 1300 ft
- Oakland City ProjectUnderground Storage Tanks · 1500 ft
- KLEEN RITE KLEENERSUnderground Storage Tanks · 1600 ft
- N & S TRUCKINGUnderground Storage Tanks · 1800 ft
- FORMER MECHANIC SHOPUnderground Storage Tanks · 1800 ft
- Tobacco Road 273Underground Storage Tanks · 1900 ft
- Chuckles 14Underground Storage Tanks · 2100 ft
- EAST GIBSON SCHOOL CORPBrownfields · 0.5 mi
- OLD AYRCOE MINEUnderground Storage Tanks · 0.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Oakland City'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 Oakland City.
Total Sites
61
within ~10 miles of Oakland City
Risk Level
Moderate
Highest-severity
8 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Oakland City
Severity Distribution
within ~10 miles of Oakland City
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Oakland City, Toxics Release Inventory runs higher than the national average — 8 sites within ~10 miles of Oakland City. 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.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Oakland City
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 Oakland City average
Your land is one point inside Oakland City
Everything above resolves to Oakland City as a whole — one PHZM band and one 28°F frost record, read across 653 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 Oakland City Average
Oakland City Average
- ●USDA Zones 6b, averaged across Oakland City
- ●One soil character for all of Oakland City
- ●Frost dates read at Oakland City's scale: Mar 28 to Nov 8
YOUR Parcel
- ✓Your exact zone, not Oakland City's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Oakland City
Pull a site-specific report for your exact address in Oakland City, Indiana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Oakland City averages can't show:
We read public map data around Oakland City — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Oakland City average
How we know this about Oakland City
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 Oakland City’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 Oakland City
When does frost risk typically end in Oakland City?
The last hard freeze (28°F) in Oakland City typically lands around Mar 28, 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 18.
When is the first frost in Oakland City?
The first hard freeze (28°F) in Oakland City typically arrives around Nov 8, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 25, so the watching starts about Oct 9 — about 225 days after the spring freeze cleared.
How long is the growing season in Oakland City?
Measured between 28°F hard freezes, Oakland City sees about 225 frost-free days — roughly Mar 28 through Nov 8, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 18 to Oct 25, about 190 days.
Is the soil safe to grow vegetables in Oakland City?
The federal record around Oakland City shows 61 documented sites, mostly Underground Storage Tanks entries (34), the nearest Brownfields record about 0.1 miles out — a typical footprint for a growing area, and proximity to a documented site is information, not a diagnosis of any one yard. It's worth seeing which recorded sites sit closest to where you grow, and testing the soil before new food beds near any of them.
How do I protect my plants from frost in Oakland City?
From about Oct 9 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 8 (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 8. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Oakland City's scale — its 6b band and its 225-day season. Your yard writes its own version of Oakland City'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 Oakland City’s own scale
7 of the readings below were taken at Oakland City's own scale — its own ~225-day season between 28°F freezes, the 653 acres it covers and 61 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Oakland City's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Oakland City's own 28°F hard-freeze dates, about Mar 28 and Nov 8 and the ~225-day span between themNOAA 1991–2020 Climate Normals
- 61 documented contamination sites on the federal record near Oakland City, the closest Brownfields record about 0.1 miles out from the town centreFederal environmental registers
- Oakland City's boundary and the 653 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~225-day seasonGrowable Ground crop-matching engine
- The ecoregion at Oakland City's own centroid, the Interior River Valleys and HillsUS EPA Level III Ecoregions
- Lanternfly survey cells around Oakland City 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 Oakland City's 653 acres read through its county's SSURGO summaryfrom Gibson County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Gibson 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 Gibson County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Oakland City's 653 acreswhy one lot differs from the next →
- Which side of Oakland City you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 653 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 Oakland City-wide figureread your own land →
More in Indiana
Wider growing context
What grows across IndianaOakland City sits outside our named growing regions, so Indiana as a whole is its closest context here.
Nearby growing guides