Leo-Cedarville, Indiana, sits in USDA hardiness zone 6a — a zone band wide enough that plant choice, not possibility, is the interesting question.
Well-matched crops include cabbage, hazelnut, lavender, and collard greens, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Even in Leo-Cedarville, 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 Leo-Cedarville 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 Leo-Cedarville — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Leo-Cedarville — the short answer
Leo-Cedarville, Indiana: USDA zone 6a, about 202 days between hard freezes, across 2K acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 11
- 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
- ~202
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 2K 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 Leo-Cedarville's average, not your lot's — a low corner or a tree line moves it. Against Leo-Cedarville's 202-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Leo-Cedarville
Each reading below is measured for Leo-Cedarville itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length
MeasuredLeo-Cedarville runs about 202 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
MeasuredLeo-Cedarville 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 Leo-Cedarville is in
Leo-Cedarville sits in the Eastern Corn Belt Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Leo-Cedarville's own centroid rather than borrowed from Allen County.
What Grows in Leo-Cedarville
Every plant below cleared Leo-Cedarville's own zone 6a and its 202-day season. Each card opens that plant's Indiana profile. How we score.






























Is it too late to plant in Leo-Cedarville?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 14; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 11 (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. Here the season winds down slowly: late sowings, a real autumn harvest, and garlic in the ground before the first hard freeze.
Documented around Leo-Cedarville
Spotted lanternfly documented 13 miles from Leo-Cedarville, first recorded 2023. What to watch for.
What's on the federal record near Leo-Cedarville
Closest first, within ~10 miles of Leo-Cedarville. Listing isn't leaking, and distance isn't exposure.
- LEO HIGH SCHOOLUnderground Storage Tanks · 850 ft
- Rickers Petro Mart 52Underground Storage Tanks · 2200 ft
- Hand & Hand Food Services IncorporatedUnderground Storage Tanks · 2400 ft
- SCHERER & MAXFIELD INCORPORATEDUnderground Storage Tanks · 2400 ft
- CVS PHARMACY 6323Brownfields · 2600 ft
- Leo Stop N GoUnderground Storage Tanks · 0.6 mi
- SPENCERVILLE MARATHON SERVICEUnderground Storage Tanks · 0.6 mi
- AMSTUTZ WELL DRILLINGUnderground Storage Tanks · 1.1 mi
- VANS HOME TOWN CLEANERSBrownfields · 1.1 mi
- BENCHS EVRYTHING COMPANYUnderground Storage Tanks · 1.2 mi
- M & W COUNTERTOPSBrownfields · 1.7 mi
- M & W COUNTERTOPSToxics Release Inventory · 1.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Leo-Cedarville'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 Leo-Cedarville.
Total Sites
556
within ~10 miles of Leo-Cedarville
Risk Level
Elevated
Highest-severity
2 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Leo-Cedarville
Severity Distribution
within ~10 miles of Leo-Cedarville
Highest-Severity Sites

A note from Gnorman
What an experienced grower watches for around here
In and around Leo-Cedarville, two things run higher than the national average within ~10 miles of Leo-Cedarville — Toxics Release Inventory (49 sites) and PFAS (5 sites). 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.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check your specific parcel in Leo-Cedarville
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 Leo-Cedarville average
Your land is one point inside Leo-Cedarville
Everything above resolves to Leo-Cedarville as a whole — one PHZM band and one 28°F frost record, read across 2K 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 Leo-Cedarville Average
Leo-Cedarville Average
- ●USDA Zones 6a, averaged across Leo-Cedarville
- ●One soil character for all of Leo-Cedarville
- ●Frost dates read at Leo-Cedarville's scale: Apr 11 to Oct 30
YOUR Parcel
- ✓Your exact zone, not Leo-Cedarville's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Leo-Cedarville
Pull a site-specific report for your exact address in Leo-Cedarville, Indiana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Leo-Cedarville averages can't show:
We read public map data around Leo-Cedarville — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Leo-Cedarville average
How we know this about Leo-Cedarville
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 Leo-Cedarville’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 Leo-Cedarville
When does frost risk typically end in Leo-Cedarville?
The last hard freeze (28°F) in Leo-Cedarville typically lands around Apr 11, 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 2.
When is the first frost in Leo-Cedarville?
The first hard freeze (28°F) in Leo-Cedarville 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 202 days after the spring freeze cleared.
How long is the growing season in Leo-Cedarville?
Measured between 28°F hard freezes, Leo-Cedarville sees about 202 frost-free days — roughly Apr 11 through Oct 30, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 2 to Oct 16, about 167 days.
Is the soil safe to grow vegetables in Leo-Cedarville?
The federal record around Leo-Cedarville is a meaningful one — 556 documented sites, mostly Underground Storage Tanks entries (315), the nearest Underground Storage Tanks record about 0.2 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 Leo-Cedarville?
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 Leo-Cedarville's scale — its 6a band and its 202-day season. Your yard writes its own version of Leo-Cedarville'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 Leo-Cedarville’s own scale
7 of the readings below were taken at Leo-Cedarville's own scale — its own ~202-day season between 28°F freezes, the 2,383 acres it covers and 556 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Leo-Cedarville's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Leo-Cedarville's own 28°F hard-freeze dates, about Apr 11 and Oct 30 and the ~202-day span between themNOAA 1991–2020 Climate Normals
- 556 documented contamination sites on the federal record near Leo-Cedarville, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Leo-Cedarville's boundary and the 2,383 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~202-day seasonGrowable Ground crop-matching engine
- The ecoregion at Leo-Cedarville's own centroid, the Eastern Corn Belt PlainsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Leo-Cedarvillelydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Leo-Cedarville's 2,383 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 Leo-Cedarville's 2,383 acreswhy one lot differs from the next →
- Which side of Leo-Cedarville you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,383 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.2 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 Leo-Cedarville-wide figureread your own land →
More in Indiana
Wider growing context
What grows across IndianaLeo-Cedarville sits outside our named growing regions, so Indiana as a whole is its closest context here.
Nearby growing guides
