Middlebury, Indiana, sits in USDA hardiness zone 6a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
The conditions favor cabbage, hazelnut, lavender, and collard greens, among others — though every individual site edits that list with its own soil, sun, and drainage.
Even in Middlebury, 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 Middlebury 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 Middlebury — soil, climate, flood, and parcel records. How we handle your address.
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Middlebury — the short answer
Middlebury, Indiana: USDA zone 6a, about 215 days between hard freezes, across 204 acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 2
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 3
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~215
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 204 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 Middlebury's average, not your lot's — a low corner or a tree line moves it. Against Middlebury's 215-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Middlebury
Each reading below is measured for Middlebury itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredMiddlebury runs about 215 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
MeasuredMiddlebury 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 Middlebury is in
Middlebury sits in the Interior River Valleys and Hills — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Middlebury's own centroid rather than borrowed from Clay County.
What Grows in Middlebury
Every plant below cleared Middlebury's own zone 6a and its 215-day season. Each card opens that plant's Indiana profile. How we score.
Is it too late to plant in Middlebury?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 5; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 2 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 3 — 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 Middlebury
Survey cells within 31 miles of Middlebury checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 108 miles off. What to watch for.
What's on the federal record near Middlebury
Closest first, within ~10 miles of Middlebury. Listing isn't leaking, and distance isn't exposure.
- MARY PACKEYUnderground Storage Tanks · 600 ft
- WC-24 CLAY CITY, IND.Nitrate · 0.7 mi
- Ceres Solutions 320Underground Storage Tanks · 0.8 mi
- DAVE WHITE FORDUnderground Storage Tanks · 1.0 mi
- BEVERAGE PLACEUnderground Storage Tanks · 1.0 mi
- VANS SERVICE CENTERUnderground Storage Tanks · 1.0 mi
- CLAY CITY HIGH SCHOOLSUnderground Storage Tanks · 1.1 mi
- WC-72 CLAY CITY, IND.Nitrate · 1.2 mi
- Scheppers Tire & BatteryUnderground Storage Tanks · 1.4 mi
- NAWQA AG WELL GL10 AT CLAY CITY, INNitrate · 1.4 mi
- CLAY CITY PLAZA INCORPORATEDUnderground Storage Tanks · 1.4 mi
- ACE IN THE HOLE MINEToxics Release Inventory · 1.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Middlebury'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 Middlebury.
Total Sites
96
within ~10 miles of Middlebury
Risk Level
Moderate
Highest-severity
3 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Middlebury
Severity Distribution
within ~10 miles of Middlebury
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Middlebury, Nitrate runs higher than the national average — 48 sites within ~10 miles of Middlebury. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Middlebury
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 Middlebury average
Your land is one point inside Middlebury
Everything above resolves to Middlebury as a whole — one PHZM band and one 28°F frost record, read across 204 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 Middlebury Average
Middlebury Average
- ●USDA Zones 6a, averaged across Middlebury
- ●One soil character for all of Middlebury
- ●Frost dates read at Middlebury's scale: Apr 2 to Nov 3
YOUR Parcel
- ✓Your exact zone, not Middlebury's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Middlebury
Pull a site-specific report for your exact address in Middlebury, Indiana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Middlebury averages can't show:
We read public map data around Middlebury — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Middlebury average
How we know this about Middlebury
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 Middlebury’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 Middlebury
When does frost risk typically end in Middlebury?
The last hard freeze (28°F) in Middlebury typically lands around Apr 2, 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 23.
When is the first frost in Middlebury?
The first hard freeze (28°F) in Middlebury typically arrives around Nov 3, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 20, so the watching starts about Oct 4 — about 215 days after the spring freeze cleared.
How long is the growing season in Middlebury?
Measured between 28°F hard freezes, Middlebury sees about 215 frost-free days — roughly Apr 2 through Nov 3, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 23 to Oct 20, about 180 days.
Is the soil safe to grow vegetables in Middlebury?
The federal record around Middlebury shows 96 documented sites, mostly Nitrate entries (48), the nearest Underground Storage Tanks 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 Middlebury?
From about Oct 4 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 3 (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 3. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Middlebury's scale — its 6a band and its 215-day season. Your yard writes its own version of Middlebury'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 Middlebury’s own scale
7 of the readings below were taken at Middlebury's own scale — its own ~215-day season between 28°F freezes, the 204 acres it covers and 96 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Middlebury's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Middlebury's own 28°F hard-freeze dates, about Apr 2 and Nov 3 and the ~215-day span between themNOAA 1991–2020 Climate Normals
- 96 documented contamination sites on the federal record near Middlebury, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
- Middlebury's boundary and the 204 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~215-day seasonGrowable Ground crop-matching engine
- The ecoregion at Middlebury's own centroid, the Interior River Valleys and HillsUS EPA Level III Ecoregions
- Lanternfly survey cells around Middlebury 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 Middlebury's 204 acres read through its county's SSURGO summaryfrom Clay County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Clay 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 Clay County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Middlebury's 204 acreswhy one lot differs from the next →
- Which side of Middlebury you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 204 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 Middlebury-wide figureread your own land →
More in Indiana
Wider growing context
What grows across IndianaMiddlebury sits outside our named growing regions, so Indiana as a whole is its closest context here.
Nearby growing guides