Logan, Ohio, sits in USDA hardiness zone 6a — a zone band wide enough that plant choice, not possibility, is the interesting question.
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 Logan, 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 Logan 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 Logan — soil, climate, flood, and parcel records. How we handle your address.
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Logan — the short answer
Logan, Ohio: USDA zone 6a, about 194 days between hard freezes, across 3K acres of city.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 15
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 26
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~194
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 3K 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 Logan's average, not your lot's — a low corner or a tree line moves it. Against Logan's 194-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Logan
Each reading below is measured for Logan itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length
MeasuredLogan runs about 194 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
MeasuredLogan 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 Logan is in
Logan sits in the Western Allegheny Plateau — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Logan's own centroid rather than borrowed from Hocking County.
What Grows in Logan
Every plant below cleared Logan's own zone 6a and its 194-day season. Each card opens that plant's Ohio profile. How we score.






























Is it too late to plant in Logan?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Mar 18; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 15 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 26 — long-season crops need about 90 days of runway, quick greens only 30. The tail of the season still works: sixty-day crops into late summer, quick greens after, garlic last of all.
Documented around Logan
Survey cells within 31 miles of Logan checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 42 miles off. What to watch for.
What's on the federal record near Logan
Closest first, within ~10 miles of Logan. Listing isn't leaking, and distance isn't exposure.
- SPEEDWAY #9186Underground Storage Tanks · 200 ft
- SUPERAMERICA NO 5186Brownfields · 200 ft
- LOGAN CLAY PRODUCTS CO.Underground Storage Tanks · 350 ft
- FRAUN'S SERVICEUnderground Storage Tanks · 400 ft
- GTE NORTH INC.Underground Storage Tanks · 450 ft
- CITY OF LOGAN FIRE DEPARTMENTBrownfields · 550 ft
- FORMER FRAUN'S SERVICE GARAGEBrownfields · 650 ft
- TANSKY BODY SHOPUnderground Storage Tanks · 700 ft
- KEYNES BROTHERS, INC.Underground Storage Tanks · 800 ft
- KEYNES BROTHERS INCToxics Release Inventory · 800 ft
- LOGAN CLAY PRODUCTS COToxics Release Inventory · 850 ft
- BELVILLE MOTOR CARUnderground Storage Tanks · 1000 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Logan'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 Logan.
Total Sites
138
within ~10 miles of Logan
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Logan
Severity Distribution
within ~10 miles of Logan
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in Logan
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 Logan average
Your land is one point inside Logan
Everything above resolves to Logan as a whole — one PHZM band and one 28°F frost record, read across 3K 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 city 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 Logan Average
Logan Average
- ●USDA Zones 6a, averaged across Logan
- ●One soil character for all of Logan
- ●Frost dates read at Logan's scale: Apr 15 to Oct 26
YOUR Parcel
- ✓Your exact zone, not Logan's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Logan
Pull a site-specific report for your exact address in Logan, Ohio — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Logan averages can't show:
We read public map data around Logan — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Logan average
How we know this about Logan
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Logan’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 city grain anywhere on this page — there is no city-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 Logan
When does frost risk typically end in Logan?
The last hard freeze (28°F) in Logan typically lands around Apr 15, 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 6.
When is the first frost in Logan?
The first hard freeze (28°F) in Logan typically arrives around Oct 26, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 12, so the watching starts about Sep 26 — about 194 days after the spring freeze cleared.
How long is the growing season in Logan?
Measured between 28°F hard freezes, Logan sees about 194 frost-free days — roughly Apr 15 through Oct 26, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 6 to Oct 12, about 159 days.
Is the soil safe to grow vegetables in Logan?
The federal record around Logan is a meaningful one — 138 documented sites, mostly Underground Storage Tanks entries (73), the nearest Underground Storage Tanks record under a tenth of a mile 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 Logan?
From about Sep 26 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 26 (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 26. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Logan's scale — its 6a band and its 194-day season. Your yard writes its own version of Logan'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 Logan’s own scale
7 of the readings below were taken at Logan's own scale — its own ~194-day season between 28°F freezes, the 3,066 acres it covers and 138 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Logan's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Logan's own 28°F hard-freeze dates, about Apr 15 and Oct 26 and the ~194-day span between themNOAA 1991–2020 Climate Normals
- 138 documented contamination sites on the federal record near Logan, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Logan's boundary and the 3,066 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~194-day seasonGrowable Ground crop-matching engine
- The ecoregion at Logan's own centroid, the Western Allegheny PlateauUS EPA Level III Ecoregions
- Lanternfly survey cells around Logan 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 Logan's 3,066 acres read through its county's SSURGO summaryfrom Hocking County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Hocking 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 Hocking County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Logan's 3,066 acreswhy one lot differs from the next →
- Which side of Logan you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 3,066 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record under a tenth of a mile 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 Logan-wide figureread your own land →
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