Millfield, Ohio, sits in USDA hardiness zone 6b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
A short list that earns its place here — cabbage, hazelnut, lavender, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Millfield, 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 Millfield 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 Millfield — soil, climate, flood, and parcel records. How we handle your address.
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Millfield — the short answer
Millfield, Ohio: USDA zone 6b, about 198 days between hard freezes, across 363 acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 13
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 28
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~198
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 363 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 6b is Millfield's average, not your lot's — a low corner or a tree line moves it. Against Millfield's 198-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Millfield
Each reading below is measured for Millfield itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredMillfield runs about 198 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
MeasuredMillfield sits in USDA hardiness zone 6b.
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 Millfield is in
Millfield sits in the Western Allegheny Plateau — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Millfield's own centroid rather than borrowed from Athens County.
What Grows in Millfield
Every plant below cleared Millfield's own zone 6b and its 198-day season. Each card opens that plant's Ohio profile. How we score.
Is it too late to plant in Millfield?
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 16; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 13 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 28 — 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 Millfield
Survey cells within 31 miles of Millfield checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 41 miles off. What to watch for.
What's on the federal record near Millfield
Closest first, within ~10 miles of Millfield. Listing isn't leaking, and distance isn't exposure.
- SUNDAY CREEK VALLEY WATER PWSPFAS · 1.3 mi
- OLD STEAK HOUSEUnderground Storage Tanks · 2.7 mi
- GLOUSTER CITGOUnderground Storage Tanks · 2.9 mi
- CERTIFIED GAS STATION #223Underground Storage Tanks · 3.0 mi
- CHAUNCEY SERVICE STATIONUnderground Storage Tanks · 3.1 mi
- JOHN'S OIL COMPANYUnderground Storage Tanks · 3.2 mi
- ATHENS CITY SCHOOL BUS LOTUnderground Storage Tanks · 3.2 mi
- TEXAS EASTERN CHAUNCEY WAREHOUSEUnderground Storage Tanks · 3.2 mi
- ATHENS-HOCKING RECYCLING CENTERS, INC.Toxics Release Inventory · 3.2 mi
- DOVER TWP TRUSTEESUnderground Storage Tanks · 3.3 mi
- WEST MAIN STREET CHAUNCEYBrownfields · 3.4 mi
- KROGER #831Brownfields · 3.4 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Millfield'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 Millfield.
Total Sites
203
within ~10 miles of Millfield
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Millfield
Severity Distribution
within ~10 miles of Millfield
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Millfield, PFAS runs higher than the national average — 5 sites within ~10 miles of Millfield. That's not a problem with your land — it's information about it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check your specific parcel in Millfield
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 Millfield average
Your land is one point inside Millfield
Everything above resolves to Millfield as a whole — one PHZM band and one 28°F frost record, read across 363 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 Millfield Average
Millfield Average
- ●USDA Zones 6b, averaged across Millfield
- ●One soil character for all of Millfield
- ●Frost dates read at Millfield's scale: Apr 13 to Oct 28
YOUR Parcel
- ✓Your exact zone, not Millfield's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Millfield
Pull a site-specific report for your exact address in Millfield, Ohio — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Millfield averages can't show:
We read public map data around Millfield — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Millfield average
How we know this about Millfield
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 Millfield’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 Millfield
When does frost risk typically end in Millfield?
The last hard freeze (28°F) in Millfield typically lands around Apr 13, 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 4.
When is the first frost in Millfield?
The first hard freeze (28°F) in Millfield typically arrives around Oct 28, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 14, so the watching starts about Sep 28 — about 198 days after the spring freeze cleared.
How long is the growing season in Millfield?
Measured between 28°F hard freezes, Millfield sees about 198 frost-free days — roughly Apr 13 through Oct 28, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 4 to Oct 14, about 163 days.
Is the soil safe to grow vegetables in Millfield?
The federal record around Millfield is a meaningful one — 203 documented sites, mostly Underground Storage Tanks entries (111), the nearest PFAS record about 1.3 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 Millfield?
From about Sep 28 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 28 (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 28. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Millfield's scale — its 6b band and its 198-day season. Your yard writes its own version of Millfield'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 Millfield’s own scale
7 of the readings below were taken at Millfield's own scale — its own ~198-day season between 28°F freezes, the 363 acres it covers and 203 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Millfield's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Millfield's own 28°F hard-freeze dates, about Apr 13 and Oct 28 and the ~198-day span between themNOAA 1991–2020 Climate Normals
- 203 documented contamination sites on the federal record near Millfield, the closest PFAS record about 1.3 miles out from the town centreFederal environmental registers
- Millfield's boundary and the 363 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~198-day seasonGrowable Ground crop-matching engine
- The ecoregion at Millfield's own centroid, the Western Allegheny PlateauUS EPA Level III Ecoregions
- Lanternfly survey cells around Millfield 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 Millfield's 363 acres read through its county's SSURGO summaryfrom Athens County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Athens County
- The growing challenges every Ohio grower plans around — written at state scale, so they stay on the state guidefrom Ohio
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Athens County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Millfield's 363 acreswhy one lot differs from the next →
- Which side of Millfield you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 363 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest PFAS record about 1.3 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 Millfield-wide figureread your own land →
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