New Miami, Ohio, sits in USDA hardiness zone 6b — 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 New Miami, 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 New Miami 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 New Miami — soil, climate, flood, and parcel records. How we handle your address.
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New Miami — the short answer
New Miami, Ohio: USDA zone 6b, about 212 days between hard freezes, across 574 acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 3
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 1
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~212
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 574 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 New Miami's average, not your lot's — a low corner or a tree line moves it. Against New Miami's 212-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in New Miami
Each reading below is measured for New Miami itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length
MeasuredNew Miami runs about 212 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
MeasuredNew Miami 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 New Miami is in
New Miami sits in the Eastern Corn Belt Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at New Miami's own centroid rather than borrowed from Butler County.
What Grows in New Miami
Every plant below cleared New Miami's own zone 6b and its 212-day season. Each card opens that plant's Ohio profile. How we score.






























Is it too late to plant in New Miami?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 6; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 3 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 1 — 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 New Miami
Spotted lanternfly documented 17 miles from New Miami, first recorded 2023. What to watch for.
What's on the federal record near New Miami
Closest first, within ~10 miles of New Miami. Listing isn't leaking, and distance isn't exposure.
- FAMILY DOLLAR #9321Brownfields · 1600 ft
- HELTON'S MARKETUnderground Storage Tanks · 1700 ft
- NEW MIAMI POLICE DEPARTMENTUnderground Storage Tanks · 1700 ft
- NEW MIAMI STREET DEPARTMENTUnderground Storage Tanks · 1800 ft
- DON S. CISLE CONTRACTORS, INC.Underground Storage Tanks · 1800 ft
- AK STEEL CORP HAMILTON PLANTSuperfund · 0.5 mi
- AK STEEL CORP HAMILTON PLANTToxics Release Inventory · 0.5 mi
- NEW MIAMI QUIK STOPUnderground Storage Tanks · 0.7 mi
- THORNTONS INC. #75Underground Storage Tanks · 0.8 mi
- WAGERS AUTO BODYBrownfields · 1.0 mi
- GLENN BONHAMUnderground Storage Tanks · 1.2 mi
- REFUSE TRANSFER STATIONUnderground Storage Tanks · 1.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from New Miami'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 New Miami.
Sources Checked
within ~10 miles of New Miami
Severity Distribution
within ~10 miles of New Miami
Highest-Severity Sites

A note from Gnorman
What an experienced grower watches for around here
In and around New Miami, Toxics Release Inventory runs higher than the national average — 123 sites within ~10 miles of New Miami. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
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 New Miami
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 New Miami average
Your land is one point inside New Miami
Everything above resolves to New Miami as a whole — one PHZM band and one 28°F frost record, read across 574 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 New Miami Average
New Miami Average
- ●USDA Zones 6b, averaged across New Miami
- ●One soil character for all of New Miami
- ●Frost dates read at New Miami's scale: Apr 3 to Nov 1
YOUR Parcel
- ✓Your exact zone, not New Miami's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in New Miami
Pull a site-specific report for your exact address in New Miami, Ohio — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that New Miami averages can't show:
We read public map data around New Miami — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the New Miami average
How we know this about New Miami
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 New Miami’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 New Miami
When does frost risk typically end in New Miami?
The last hard freeze (28°F) in New Miami typically lands around Apr 3, 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 24.
When is the first frost in New Miami?
The first hard freeze (28°F) in New Miami typically arrives around Nov 1, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 18, so the watching starts about Oct 2 — about 212 days after the spring freeze cleared.
How long is the growing season in New Miami?
Measured between 28°F hard freezes, New Miami sees about 212 frost-free days — roughly Apr 3 through Nov 1, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 24 to Oct 18, about 177 days.
Is the soil safe to grow vegetables in New Miami?
The federal record around New Miami is a meaningful one — 1,095 documented sites, mostly Underground Storage Tanks entries (479), the nearest Brownfields record about 0.3 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 New Miami?
From about Oct 2 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 1 (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 1. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at New Miami's scale — its 6b band and its 212-day season. Your yard writes its own version of New Miami'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 New Miami’s own scale
7 of the readings below were taken at New Miami's own scale — its own ~212-day season between 28°F freezes, the 574 acres it covers and 1,095 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- New Miami's own USDA hardiness band, zones 6bUSDA PHZM 2023
- New Miami's own 28°F hard-freeze dates, about Apr 3 and Nov 1 and the ~212-day span between themNOAA 1991–2020 Climate Normals
- 1,095 documented contamination sites on the federal record near New Miami, the closest Brownfields record about 0.3 miles out from the town centreFederal environmental registers
- New Miami's boundary and the 574 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~212-day seasonGrowable Ground crop-matching engine
- The ecoregion at New Miami's own centroid, the Eastern Corn Belt PlainsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of New Miamilydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so New Miami's 574 acres read through its county's SSURGO summaryfrom Butler County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Butler 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 Butler County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among New Miami's 574 acreswhy one lot differs from the next →
- Which side of New Miami you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 574 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record about 0.3 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 New Miami-wide figureread your own land →
More in Ohio
Wider growing context
What grows across OhioNew Miami sits outside our named growing regions, so Ohio as a whole is its closest context here.
Nearby growing guides
