Grabill, Indiana, sits in USDA hardiness zone 6a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
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 Grabill, 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 Grabill 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 Grabill — soil, climate, flood, and parcel records. How we handle your address.
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Grabill — the short answer
Grabill, Indiana: USDA zone 6a, about 201 days between hard freezes, across 417 acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 12
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 30
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~201
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 417 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 Grabill's average, not your lot's — a low corner or a tree line moves it. Against Grabill's 201-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Grabill
Each reading below is measured for Grabill itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredGrabill runs about 201 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
MeasuredGrabill 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 Grabill is in
Grabill sits in the Eastern Corn Belt Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Grabill's own centroid rather than borrowed from Allen County.
What Grows in Grabill
Every plant below cleared Grabill's own zone 6a and its 201-day season. Each card opens that plant's Indiana profile. How we score.
Is it too late to plant in Grabill?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 15; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 12 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 30 — 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 Grabill
Spotted lanternfly documented 14 miles from Grabill, first recorded 2023. What to watch for.
What's on the federal record near Grabill
Closest first, within ~10 miles of Grabill. Listing isn't leaking, and distance isn't exposure.
- GRABILL CABINET COMPANY INCORPORATEDToxics Release Inventory · 600 ft
- GRABILL CABINET COMPANY INCORPORATEDBrownfields · 600 ft
- NUEHOUSER KRYDER INCORPORATEDUnderground Storage Tanks · 600 ft
- GRABILL CABINETToxics Release Inventory · 700 ft
- GRABILL CABINET COMPANYUnderground Storage Tanks · 700 ft
- BREED STEERING SYS. INC.Brownfields · 800 ft
- BREED STEERING SYS. INC.Toxics Release Inventory · 800 ft
- SAUDER FEEDS INCORPORATEDUnderground Storage Tanks · 1400 ft
- SAUDER MANUFACTURING COToxics Release Inventory · 1500 ft
- JIMS AUTO CAREUnderground Storage Tanks · 1700 ft
- JIMS AUTO CAREBrownfields · 1800 ft
- WEEBEE CONVENIENT STOREUnderground Storage Tanks · 2000 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Grabill'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 Grabill.
Total Sites
276
within ~10 miles of Grabill
Risk Level
Elevated
Highest-severity
3 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Grabill
Severity Distribution
within ~10 miles of Grabill
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Grabill, two things run higher than the national average within ~10 miles of Grabill — PFAS (4 sites) and Toxics Release Inventory (25 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Grabill
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 Grabill average
Your land is one point inside Grabill
Everything above resolves to Grabill as a whole — one PHZM band and one 28°F frost record, read across 417 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 Grabill Average
Grabill Average
- ●USDA Zones 6a, averaged across Grabill
- ●One soil character for all of Grabill
- ●Frost dates read at Grabill's scale: Apr 12 to Oct 30
YOUR Parcel
- ✓Your exact zone, not Grabill's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Grabill
Pull a site-specific report for your exact address in Grabill, Indiana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Grabill averages can't show:
We read public map data around Grabill — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Grabill average
How we know this about Grabill
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 Grabill’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 Grabill
When does frost risk typically end in Grabill?
The last hard freeze (28°F) in Grabill typically lands around Apr 12, 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 3.
When is the first frost in Grabill?
The first hard freeze (28°F) in Grabill typically arrives around Oct 30, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 16, so the watching starts about Sep 30 — about 201 days after the spring freeze cleared.
How long is the growing season in Grabill?
Measured between 28°F hard freezes, Grabill sees about 201 frost-free days — roughly Apr 12 through Oct 30, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 3 to Oct 16, about 166 days.
Is the soil safe to grow vegetables in Grabill?
The federal record around Grabill is a meaningful one — 276 documented sites, mostly Underground Storage Tanks entries (157), the nearest Toxics Release Inventory record about 0.1 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 Grabill?
From about Sep 30 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 30 (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 30. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Grabill's scale — its 6a band and its 201-day season. Your yard writes its own version of Grabill'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 Grabill’s own scale
7 of the readings below were taken at Grabill's own scale — its own ~201-day season between 28°F freezes, the 417 acres it covers and 276 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Grabill's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Grabill's own 28°F hard-freeze dates, about Apr 12 and Oct 30 and the ~201-day span between themNOAA 1991–2020 Climate Normals
- 276 documented contamination sites on the federal record near Grabill, the closest Toxics Release Inventory record about 0.1 miles out from the town centreFederal environmental registers
- Grabill's boundary and the 417 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~201-day seasonGrowable Ground crop-matching engine
- The ecoregion at Grabill's own centroid, the Eastern Corn Belt PlainsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Grabilllydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Grabill's 417 acres read through its county's SSURGO summaryfrom Allen County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Allen 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 Allen County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Grabill's 417 acreswhy one lot differs from the next →
- Which side of Grabill you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 417 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Toxics Release Inventory 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 Grabill-wide figureread your own land →
More in Indiana
Wider growing context
What grows across IndianaGrabill sits outside our named growing regions, so Indiana as a whole is its closest context here.
Nearby growing guides