Larwill, 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.
Among the crops suited to this profile: cabbage, hazelnut, lavender, and collard greens. The site-level story — soil, sun, drainage — decides the rest.
Even in Larwill, 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 Larwill 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 Larwill — soil, climate, flood, and parcel records. How we handle your address.
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Larwill — the short answer
Larwill, Indiana: USDA zone 6a, about 200 days between hard freezes, across 115 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 29
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~200
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 115 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 Larwill's average, not your lot's — a low corner or a tree line moves it. Against Larwill's 200-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Larwill
Each reading below is measured for Larwill itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredLarwill runs about 200 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
MeasuredLarwill 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 Larwill is in
Larwill sits in the Southern Michigan/Northern Indiana Drift Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Larwill's own centroid, and it is not what its county reads: Whitley County is mostly Eastern Corn Belt Plains. The wider page above you is answering a different question about different ground.
What Grows in Larwill
Every plant below cleared Larwill's own zone 6a and its 200-day season. Each card opens that plant's Indiana profile. How we score.
Is it too late to plant in Larwill?
For most of the year, no — what changes is which crops still fit the days remaining. 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 29 — 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 Larwill
Spotted lanternfly documented 20 miles from Larwill, first recorded 2022. What to watch for.
What's on the federal record near Larwill
Closest first, within ~10 miles of Larwill. Listing isn't leaking, and distance isn't exposure.
- LARWILL DELIUnderground Storage Tanks · 700 ft
- Swifty Oil 200Underground Storage Tanks · 900 ft
- BUD MILLERUnderground Storage Tanks · 0.6 mi
- ETNA TROY TOWNSHIP COMMUNITY CENTERUnderground Storage Tanks · 3.0 mi
- JIM DRAPER PAINTINGBrownfields · 3.1 mi
- HARTMAN & SONS INCBrownfields · 3.8 mi
- ETNA TROY SCHOOLUnderground Storage Tanks · 4.0 mi
- PARAGON MEDICAL INCBrownfields · 4.3 mi
- PARAGON MEDICAL INCToxics Release Inventory · 4.3 mi
- TTP INC DIESEL POWER & MACHINEBrownfields · 4.3 mi
- TRI-LAKES CONTAINERBrownfields · 4.3 mi
- Collier Oil CompanyUnderground Storage Tanks · 4.3 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Larwill'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 Larwill.
Sources Checked
within ~10 miles of Larwill
Severity Distribution
within ~10 miles of Larwill
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Larwill, Toxics Release Inventory runs higher than the national average — 16 sites within ~10 miles of Larwill. That's not a problem with your land — it's information about 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 Larwill
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 Larwill average
Your land is one point inside Larwill
Everything above resolves to Larwill as a whole — one PHZM band and one 28°F frost record, read across 115 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 Larwill Average
Larwill Average
- ●USDA Zones 6a, averaged across Larwill
- ●One soil character for all of Larwill
- ●Frost dates read at Larwill's scale: Apr 12 to Oct 29
YOUR Parcel
- ✓Your exact zone, not Larwill's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Larwill
Pull a site-specific report for your exact address in Larwill, Indiana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Larwill averages can't show:
We read public map data around Larwill — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Larwill average
How we know this about Larwill
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 Larwill’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 Larwill
When does frost risk typically end in Larwill?
The last hard freeze (28°F) in Larwill 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 Larwill?
The first hard freeze (28°F) in Larwill 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 200 days after the spring freeze cleared.
How long is the growing season in Larwill?
Measured between 28°F hard freezes, Larwill sees about 200 frost-free days — roughly Apr 12 through Oct 29, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 3 to Oct 15, about 165 days.
Is the soil safe to grow vegetables in Larwill?
The federal record around Larwill is a meaningful one — 165 documented sites, mostly Underground Storage Tanks entries (98), the nearest Underground Storage Tanks 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 Larwill?
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 Larwill's scale — its 6a band and its 200-day season. Your yard writes its own version of Larwill'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 Larwill’s own scale
7 of the readings below were taken at Larwill's own scale — its own ~200-day season between 28°F freezes, the 115 acres it covers and 165 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Larwill's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Larwill's own 28°F hard-freeze dates, about Apr 12 and Oct 29 and the ~200-day span between themNOAA 1991–2020 Climate Normals
- 165 documented contamination sites on the federal record near Larwill, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
- Larwill's boundary and the 115 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~200-day seasonGrowable Ground crop-matching engine
- Larwill sits in the Southern Michigan/Northern Indiana Drift Plains — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Larwilllydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Larwill's 115 acres read through its county's SSURGO summaryfrom Whitley County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Whitley 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 Whitley County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Larwill's 115 acreswhy one lot differs from the next →
- Which side of Larwill you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 115 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 Larwill-wide figureread your own land →
More in Indiana
Wider growing context
What grows across IndianaLarwill sits outside our named growing regions, so Indiana as a whole is its closest context here.
Nearby growing guides