Rock Cave, West Virginia, 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.
Reliable performers under these conditions include cabbage, hazelnut, lavender, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Rock Cave, 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 Rock Cave 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 Rock Cave — soil, climate, flood, and parcel records. How we handle your address.
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Rock Cave — the short answer
Rock Cave, West Virginia: USDA zone 6b, about 196 days between hard freezes, across 2K acres of town.
- USDA zone
- 6b
- 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 28
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~196
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 2K 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 Rock Cave's average, not your lot's — a low corner or a tree line moves it. Against Rock Cave's 196-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Rock Cave
Each reading below is measured for Rock Cave itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length
MeasuredRock Cave runs about 196 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
MeasuredRock Cave 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 Rock Cave is in
Rock Cave sits in the Western Allegheny Plateau — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Rock Cave's own centroid, and it is not what its county reads: Upshur County is mostly Central Appalachians. The wider page above you is answering a different question about different ground.
What Grows in Rock Cave
Every plant below cleared Rock Cave's own zone 6b and its 196-day season. Each card opens that plant's West Virginia profile. How we score.






























Is it too late to plant in Rock Cave?
Rarely: the season closes in stages, not all at once, and each stage has its crops. 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 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 Rock Cave
Survey cells within 31 miles of Rock Cave 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 Rock Cave
Closest first, within ~10 miles of Rock Cave. Listing isn't leaking, and distance isn't exposure.
- COGAR TRUCKING, LLCBrownfields · 300 ft
- B & B MART DONALD BURNSIDEUnderground Storage Tanks · 1300 ft
- HISSAMS SERVICE STATIONUnderground Storage Tanks · 1300 ft
- WILSON SERVICE STATIONUnderground Storage Tanks · 1300 ft
- COMMUNITY CARE OF ROCK CAVEBrownfields · 1400 ft
- Ups-0059Nitrate · 1800 ft
- RALPH H HARPER LBR COUnderground Storage Tanks · 0.5 mi
- Ups-0070Nitrate · 1.3 mi
- ANDERSON SERVICE STATIONUnderground Storage Tanks · 1.8 mi
- BROWN'S EXXONUnderground Storage Tanks · 2.3 mi
- HARPERS STORE/WILSON C HARPERUnderground Storage Tanks · 2.3 mi
- GALFORDS COUNTRY STOREUnderground Storage Tanks · 2.9 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Rock Cave'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 Rock Cave.
Total Sites
77
within ~10 miles of Rock Cave
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Rock Cave
Severity Distribution
within ~10 miles of Rock Cave
Highest-Severity Sites

A note from Gnorman
What an experienced grower watches for around here
In and around Rock Cave, Nitrate runs higher than the national average — 34 sites within ~10 miles of Rock Cave. 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 Rock Cave
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 Rock Cave average
Your land is one point inside Rock Cave
Everything above resolves to Rock Cave as a whole — one PHZM band and one 28°F frost record, read across 2K 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 Rock Cave Average
Rock Cave Average
- ●USDA Zones 6b, averaged across Rock Cave
- ●One soil character for all of Rock Cave
- ●Frost dates read at Rock Cave's scale: Apr 15 to Oct 28
YOUR Parcel
- ✓Your exact zone, not Rock Cave's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Rock Cave
Pull a site-specific report for your exact address in Rock Cave, West Virginia — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Rock Cave averages can't show:
We read public map data around Rock Cave — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Rock Cave average
How we know this about Rock Cave
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 Rock Cave’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 Rock Cave
When does frost risk typically end in Rock Cave?
The last hard freeze (28°F) in Rock Cave 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 Rock Cave?
The first hard freeze (28°F) in Rock Cave 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 196 days after the spring freeze cleared.
How long is the growing season in Rock Cave?
Measured between 28°F hard freezes, Rock Cave sees about 196 frost-free days — roughly Apr 15 through Oct 28, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 6 to Oct 14, about 161 days.
Is the soil safe to grow vegetables in Rock Cave?
The federal record around Rock Cave is a meaningful one — 77 documented sites, mostly Nitrate entries (34), the nearest Brownfields 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 Rock Cave?
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 Rock Cave's scale — its 6b band and its 196-day season. Your yard writes its own version of Rock Cave'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 Rock Cave’s own scale
7 of the readings below were taken at Rock Cave's own scale — its own ~196-day season between 28°F freezes, the 1,983 acres it covers and 77 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Rock Cave's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Rock Cave's own 28°F hard-freeze dates, about Apr 15 and Oct 28 and the ~196-day span between themNOAA 1991–2020 Climate Normals
- 77 documented contamination sites on the federal record near Rock Cave, the closest Brownfields record under a tenth of a mile out from the town centreFederal environmental registers
- Rock Cave's boundary and the 1,983 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~196-day seasonGrowable Ground crop-matching engine
- Rock Cave sits in the Western Allegheny Plateau — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- Lanternfly survey cells around Rock Cave 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 Rock Cave's 1,983 acres read through its county's SSURGO summaryfrom Upshur County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Upshur 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 Upshur County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Rock Cave's 1,983 acreswhy one lot differs from the next →
- Which side of Rock Cave you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,983 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields 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 Rock Cave-wide figureread your own land →
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