Helvetia, West Virginia, sits in USDA hardiness zone 6b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
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 Helvetia, 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 Helvetia 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 Helvetia — soil, climate, flood, and parcel records. How we handle your address.
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Helvetia — the short answer
Helvetia, West Virginia: USDA zone 6b, about 196 days between hard freezes, across 1K acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 14
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 27
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~196
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 1K 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 Helvetia's average, not your lot's — a low corner or a tree line moves it. Against Helvetia's 196-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Helvetia
Each reading below is measured for Helvetia itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredHelvetia 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
MeasuredHelvetia 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 Helvetia is in
Helvetia sits in the Central Appalachians — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Helvetia's own centroid, and it is not what its county reads: Randolph County is mostly Ridge and Valley. The wider page above you is answering a different question about different ground.
What Grows in Helvetia
Every plant below cleared Helvetia'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 Helvetia?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 17; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 14 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 27 — long-season crops need about 90 days of runway, quick greens only 30. Even past midsummer there is room for a true fall garden here, and garlic planted near the close carries the momentum into next year.
Documented around Helvetia
Survey cells within 31 miles of Helvetia checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 47 miles off. What to watch for.
What's on the federal record near Helvetia
Closest first, within ~10 miles of Helvetia. Listing isn't leaking, and distance isn't exposure.
- J M HUBER CORPUnderground Storage Tanks · 250 ft
- COMMUNITY CARE OF HELVETIABrownfields · 850 ft
- BEECH MOUNTAIN RAILROAD COMPANYUnderground Storage Tanks · 0.6 mi
- Ran-0282Nitrate · 1.2 mi
- PICKENS SUB STA 08425Underground Storage Tanks · 3.4 mi
- Ran-0039Nitrate · 3.4 mi
- Ran-0280Nitrate · 3.5 mi
- SAYRES STOREUnderground Storage Tanks · 3.6 mi
- JOHN F HARRISUnderground Storage Tanks · 3.8 mi
- BERT BEEN EXXONUnderground Storage Tanks · 3.8 mi
- PICKENS SCHOOLUnderground Storage Tanks · 3.8 mi
- Ups-0182Nitrate · 4.0 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Helvetia'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 Helvetia.
Total Sites
35
within ~10 miles of Helvetia
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Helvetia
Severity Distribution
within ~10 miles of Helvetia
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Helvetia, Nitrate runs higher than the national average — 22 sites within ~10 miles of Helvetia. That's not a problem with your land — it's information about it.
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 Helvetia
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 Helvetia average
Your land is one point inside Helvetia
Everything above resolves to Helvetia as a whole — one PHZM band and one 28°F frost record, read across 1K 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 Helvetia Average
Helvetia Average
- ●USDA Zones 6b, averaged across Helvetia
- ●One soil character for all of Helvetia
- ●Frost dates read at Helvetia's scale: Apr 14 to Oct 27
YOUR Parcel
- ✓Your exact zone, not Helvetia's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Helvetia
Pull a site-specific report for your exact address in Helvetia, West Virginia — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Helvetia averages can't show:
We read public map data around Helvetia — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Helvetia average
How we know this about Helvetia
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 Helvetia’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 Helvetia
When does frost risk typically end in Helvetia?
The last hard freeze (28°F) in Helvetia typically lands around Apr 14, 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 5.
When is the first frost in Helvetia?
The first hard freeze (28°F) in Helvetia typically arrives around Oct 27, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 13, so the watching starts about Sep 27 — about 196 days after the spring freeze cleared.
How long is the growing season in Helvetia?
Measured between 28°F hard freezes, Helvetia sees about 196 frost-free days — roughly Apr 14 through Oct 27, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 5 to Oct 13, about 161 days.
Is the soil safe to grow vegetables in Helvetia?
The federal record around Helvetia is a meaningful one — 35 documented sites, mostly Nitrate entries (22), 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 Helvetia?
From about Sep 27 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 27 (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 27. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Helvetia's scale — its 6b band and its 196-day season. Your yard writes its own version of Helvetia'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 Helvetia’s own scale
7 of the readings below were taken at Helvetia's own scale — its own ~196-day season between 28°F freezes, the 1,162 acres it covers and 35 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Helvetia's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Helvetia's own 28°F hard-freeze dates, about Apr 14 and Oct 27 and the ~196-day span between themNOAA 1991–2020 Climate Normals
- 35 documented contamination sites on the federal record near Helvetia, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Helvetia's boundary and the 1,162 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~196-day seasonGrowable Ground crop-matching engine
- Helvetia sits in the Central Appalachians — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- Lanternfly survey cells around Helvetia 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 Helvetia's 1,162 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 Helvetia's 1,162 acreswhy one lot differs from the next →
- Which side of Helvetia you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,162 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 Helvetia-wide figureread your own land →