Glenmont, Ohio, sits in USDA hardiness zone 6a — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Expect cabbage, hazelnut, lavender, and collard greens to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Glenmont, 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 Glenmont 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 Glenmont — soil, climate, flood, and parcel records. How we handle your address.
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Glenmont — the short answer
Glenmont, Ohio: USDA zone 6a, about 201 days between hard freezes, across 180 acres of town.
- USDA zone
- 6a
- 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 31
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~201
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 180 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 Glenmont's average, not your lot's — a low corner or a tree line moves it. Against Glenmont's 201-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Glenmont
Each reading below is measured for Glenmont itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredGlenmont runs about 201 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
MeasuredGlenmont 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 Glenmont is in
Glenmont sits in the Western Allegheny Plateau — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Glenmont's own centroid rather than borrowed from Holmes County.
What Grows in Glenmont
Every plant below cleared Glenmont's own zone 6a and its 201-day season. Each card opens that plant's Ohio profile. How we score.
Is it too late to plant in Glenmont?
Almost never — the real question is what to plant next. 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 31 — 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 Glenmont
Survey cells within 31 miles of Glenmont checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 38 miles off. What to watch for.
What's on the federal record near Glenmont
Closest first, within ~10 miles of Glenmont. Listing isn't leaking, and distance isn't exposure.
- JAMES STEINERUnderground Storage Tanks · 500 ft
- OILER'S SERVICE STATIONUnderground Storage Tanks · 1300 ft
- K J HANNA AUTO WRECKINGBrownfields · 0.8 mi
- 103 PREFORMANCEUnderground Storage Tanks · 2.9 mi
- ODOT DISTRICT 3 OFFICEUnderground Storage Tanks · 4.4 mi
- KILLBUCK TOWNSHIPUnderground Storage Tanks · 4.9 mi
- ASHLAND S CENTRAL OFFICEUnderground Storage Tanks · 5.2 mi
- NASHVILLE GARAGEUnderground Storage Tanks · 5.4 mi
- RICE CHADWICK RUBBER CO.Underground Storage Tanks · 5.9 mi
- ELM SERVICEUnderground Storage Tanks · 5.9 mi
- SPERRY & RICE MFG CO LLC KILLBUCK PLTToxics Release Inventory · 6.0 mi
- SPERRY & RICE MFG CO LLC KILLBUCK PLTBrownfields · 6.0 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Glenmont'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 Glenmont.
Total Sites
57
within ~10 miles of Glenmont
Risk Level
Moderate
Highest-severity
2 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Glenmont
Severity Distribution
within ~10 miles of Glenmont
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Glenmont, Underground Storage Tanks runs higher than the national average — 39 sites within ~10 miles of Glenmont. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Glenmont
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 Glenmont average
Your land is one point inside Glenmont
Everything above resolves to Glenmont as a whole — one PHZM band and one 28°F frost record, read across 180 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 Glenmont Average
Glenmont Average
- ●USDA Zones 6a, averaged across Glenmont
- ●One soil character for all of Glenmont
- ●Frost dates read at Glenmont's scale: Apr 13 to Oct 31
YOUR Parcel
- ✓Your exact zone, not Glenmont's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Glenmont
Pull a site-specific report for your exact address in Glenmont, Ohio — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Glenmont averages can't show:
We read public map data around Glenmont — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Glenmont average
How we know this about Glenmont
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 Glenmont’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 Glenmont
When does frost risk typically end in Glenmont?
The last hard freeze (28°F) in Glenmont 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 Glenmont?
The first hard freeze (28°F) in Glenmont typically arrives around Oct 31, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 17, so the watching starts about Oct 1 — about 201 days after the spring freeze cleared.
How long is the growing season in Glenmont?
Measured between 28°F hard freezes, Glenmont sees about 201 frost-free days — roughly Apr 13 through Oct 31, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 4 to Oct 17, about 166 days.
Is the soil safe to grow vegetables in Glenmont?
The federal record around Glenmont shows 57 documented sites, mostly Underground Storage Tanks entries (39), the nearest Underground Storage Tanks record under a tenth of a mile 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 Glenmont?
From about Oct 1 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 31 (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 31. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Glenmont's scale — its 6a band and its 201-day season. Your yard writes its own version of Glenmont'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 Glenmont’s own scale
7 of the readings below were taken at Glenmont's own scale — its own ~201-day season between 28°F freezes, the 180 acres it covers and 57 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Glenmont's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Glenmont's own 28°F hard-freeze dates, about Apr 13 and Oct 31 and the ~201-day span between themNOAA 1991–2020 Climate Normals
- 57 documented contamination sites on the federal record near Glenmont, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Glenmont's boundary and the 180 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~201-day seasonGrowable Ground crop-matching engine
- The ecoregion at Glenmont's own centroid, the Western Allegheny PlateauUS EPA Level III Ecoregions
- Lanternfly survey cells around Glenmont 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 Glenmont's 180 acres read through its county's SSURGO summaryfrom Holmes County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Holmes 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 Holmes County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Glenmont's 180 acreswhy one lot differs from the next →
- Which side of Glenmont you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 180 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 Glenmont-wide figureread your own land →
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