Harman, West Virginia, 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, blackberry, california poppy, and collard greens. The site-level story — soil, sun, drainage — decides the rest.
Even in Harman, 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 Harman 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 Harman — soil, climate, flood, and parcel records. How we handle your address.
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Harman — the short answer
Harman, West Virginia: USDA zone 6a, about 167 days between hard freezes, across 207 acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 1
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 15
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~167
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 207 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 Harman's average, not your lot's — a low corner or a tree line moves it. Against Harman's 167-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Harman
Each reading below is measured for Harman itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredHarman runs about 167 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
MeasuredHarman 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 Harman is in
Harman sits in the Ridge and Valley — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Harman's own centroid rather than borrowed from Randolph County.
What Grows in Harman
Every plant below cleared Harman's own zone 6a and its 167-day season. Each card opens that plant's West Virginia profile. How we score.
Is it too late to plant in Harman?
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 Apr 3; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 1 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 15 — long-season crops need about 90 days of runway, quick greens only 30. Late in the year the fall bench takes over — quick greens, radishes, and garlic that repays you next summer.
Documented around Harman
Spotted lanternfly documented 20 miles from Harman, first recorded 2023. What to watch for.
What's on the federal record near Harman
Closest first, within ~10 miles of Harman. Listing isn't leaking, and distance isn't exposure.
- HARMAN SUB STA 08423Underground Storage Tanks · 600 ft
- MIDWAY SERVICE STATIONUnderground Storage Tanks · 700 ft
- Ran-0260Nitrate · 1200 ft
- FORMER SHAKE N BURGERUnderground Storage Tanks · 1.0 mi
- HARMAN SCHOOLUnderground Storage Tanks · 1.0 mi
- S/S LOC #20765Underground Storage Tanks · 1.0 mi
- B & B SERVICE STATIONUnderground Storage Tanks · 1.0 mi
- ROYS TRAVEL TRAILERS INCBrownfields · 2.2 mi
- PAR MAR STORE #45Brownfields · 2.5 mi
- Ran-0086Nitrate · 3.9 mi
- BENNETTS SERVICE STATIONUnderground Storage Tanks · 4.2 mi
- RIVERSIDE GROCERYUnderground Storage Tanks · 4.3 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Harman'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 Harman.
Sources Checked
within ~10 miles of Harman
Severity Distribution
within ~10 miles of Harman
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Harman, Nitrate runs higher than the national average — 30 sites within ~10 miles of Harman. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
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 Harman
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 Harman average
Your land is one point inside Harman
Everything above resolves to Harman as a whole — one PHZM band and one 28°F frost record, read across 207 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 Harman Average
Harman Average
- ●USDA Zones 6a, averaged across Harman
- ●One soil character for all of Harman
- ●Frost dates read at Harman's scale: May 1 to Oct 15
YOUR Parcel
- ✓Your exact zone, not Harman's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Harman
Pull a site-specific report for your exact address in Harman, West Virginia — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Harman averages can't show:
We read public map data around Harman — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Harman average
How we know this about Harman
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 Harman’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 Harman
When does frost risk typically end in Harman?
The last hard freeze (28°F) in Harman typically lands around May 1, 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 22.
When is the first frost in Harman?
The first hard freeze (28°F) in Harman typically arrives around Oct 15, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 1, so the watching starts about Sep 15 — about 167 days after the spring freeze cleared.
How long is the growing season in Harman?
Measured between 28°F hard freezes, Harman sees about 167 frost-free days — roughly May 1 through Oct 15, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 22 to Oct 1, about 132 days.
Is the soil safe to grow vegetables in Harman?
The federal record around Harman shows 57 documented sites, mostly Nitrate entries (30), 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 Harman?
From about Sep 15 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 15 (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 15. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Harman's scale — its 6a band and its 167-day season. Your yard writes its own version of Harman'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 Harman’s own scale
7 of the readings below were taken at Harman's own scale — its own ~167-day season between 28°F freezes, the 207 acres it covers and 57 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Harman's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Harman's own 28°F hard-freeze dates, about May 1 and Oct 15 and the ~167-day span between themNOAA 1991–2020 Climate Normals
- 57 documented contamination sites on the federal record near Harman, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
- Harman's boundary and the 207 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~167-day seasonGrowable Ground crop-matching engine
- The ecoregion at Harman's own centroid, the Ridge and ValleyUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Harmanlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Harman's 207 acres read through its county's SSURGO summaryfrom Randolph County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Randolph County
- The growing challenges every West Virginia grower plans around — written at state scale, so they stay on the state guidefrom West Virginia
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Randolph County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Harman's 207 acreswhy one lot differs from the next →
- Which side of Harman you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 207 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 Harman-wide figureread your own land →