Hanna, Indiana, sits in USDA hardiness zone 5b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Reliable performers under these conditions include cabbage, cranberry, lavender, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Hanna, 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 Hanna 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 Hanna — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Hanna — the short answer
Hanna, Indiana: USDA zone 5b, about 192 days between hard freezes, across 626 acres of town.
- USDA zone
- 5b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 16
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 25
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~192
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 626 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 Hanna's average, not your lot's — a low corner or a tree line moves it. Against Hanna's 192-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Hanna
Each reading below is measured for Hanna itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredHanna 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
MeasuredHanna 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 Hanna is in
Hanna sits in the Central Corn Belt Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Hanna's own centroid, and it is not what its county reads: LaPorte County is mostly Southern Michigan/Northern Indiana Drift Plains. The wider page above you is answering a different question about different ground.
What Grows in Hanna
Every plant below cleared Hanna's own zone 5b and its 192-day season. Each card opens that plant's Indiana profile. How we score.
Is it too late to plant in Hanna?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Mar 19; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 16 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 25 — 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 Hanna
Spotted lanternfly documented 20 miles from Hanna, first recorded 2023. What to watch for.
What's on the federal record near Hanna
Closest first, within ~10 miles of Hanna. Listing isn't leaking, and distance isn't exposure.
- DOLL OIL SERVICEUnderground Storage Tanks · 350 ft
- LA PORTE COUNTY HIGHWAY DEPARTMENTUnderground Storage Tanks · 1500 ft
- IN DOT HANNA UNIT 2Underground Storage Tanks · 2.4 mi
- HANNA SAND & GRAVEL COMPANYUnderground Storage Tanks · 2.5 mi
- MinixUnderground Storage Tanks · 2.5 mi
- PLAZA 30 RESTAURANT & TRUCK STOPUnderground Storage Tanks · 2.7 mi
- LARE A BLOOMBERB ESTATEUnderground Storage Tanks · 3.1 mi
- Knoll Brothers Retail 3Underground Storage Tanks · 3.8 mi
- SOUTH CENTRAL COMMUNITY SCHOOL CORPORATIONUnderground Storage Tanks · 4.1 mi
- KANKAKEE WELL FIELD DP-1 NEAR HANNA, INNitrate · 4.1 mi
- KANKAKEE WELL FIELD SH-1 NEAR HANNA, INNitrate · 4.1 mi
- KANKAKEE WELL FIELD SH-3 NEAR HANNA, INNitrate · 4.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Hanna'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 Hanna.
Sources Checked
within ~10 miles of Hanna
Severity Distribution
within ~10 miles of Hanna
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Hanna, two things run higher than the national average within ~10 miles of Hanna — Superfund (4 sites) and Toxics Release Inventory (14 sites). That's not a problem with your land — it's information about 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 Hanna
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 Hanna average
Your land is one point inside Hanna
Everything above resolves to Hanna as a whole — one PHZM band and one 28°F frost record, read across 626 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 Hanna Average
Hanna Average
- ●USDA Zones 5b, averaged across Hanna
- ●One soil character for all of Hanna
- ●Frost dates read at Hanna's scale: Apr 16 to Oct 25
YOUR Parcel
- ✓Your exact zone, not Hanna's 5b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Hanna
Pull a site-specific report for your exact address in Hanna, Indiana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Hanna averages can't show:
We read public map data around Hanna — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Hanna average
How we know this about Hanna
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 Hanna’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 Hanna
When does frost risk typically end in Hanna?
The last hard freeze (28°F) in Hanna typically lands around Apr 16, 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 7.
When is the first frost in Hanna?
The first hard freeze (28°F) in Hanna typically arrives around Oct 25, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 11, so the watching starts about Sep 25 — about 192 days after the spring freeze cleared.
How long is the growing season in Hanna?
Measured between 28°F hard freezes, Hanna sees about 192 frost-free days — roughly Apr 16 through Oct 25, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 7 to Oct 11, about 157 days.
Is the soil safe to grow vegetables in Hanna?
The federal record around Hanna is a meaningful one — 107 documented sites, mostly Underground Storage Tanks entries (60), the nearest Underground Storage Tanks record under a tenth of a mile 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 Hanna?
From about Sep 25 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 25 (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 25. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Hanna's scale — its 5b band and its 192-day season. Your yard writes its own version of Hanna'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 Hanna’s own scale
7 of the readings below were taken at Hanna's own scale — its own ~192-day season between 28°F freezes, the 626 acres it covers and 107 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Hanna's own USDA hardiness band, zones 5bUSDA PHZM 2023
- Hanna's own 28°F hard-freeze dates, about Apr 16 and Oct 25 and the ~192-day span between themNOAA 1991–2020 Climate Normals
- 107 documented contamination sites on the federal record near Hanna, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Hanna's boundary and the 626 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5b and a ~192-day seasonGrowable Ground crop-matching engine
- Hanna 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 Hannalydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Hanna's 626 acres read through its county's SSURGO summaryfrom LaPorte County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom LaPorte 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 LaPorte County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Hanna's 626 acreswhy one lot differs from the next →
- Which side of Hanna you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 626 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record under a tenth of a mile 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 Hanna-wide figureread your own land →