Foxburg, Pennsylvania, sits in USDA hardiness zone 6a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
On paper, cabbage, hazelnut, lavender, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Foxburg, 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 Foxburg 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 Foxburg — soil, climate, flood, and parcel records. How we handle your address.
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Foxburg — the short answer
Foxburg, Pennsylvania: USDA zone 6a, about 188 days between hard freezes, across 236 acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 24
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 29
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~188
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 236 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 Foxburg's average, not your lot's — a low corner or a tree line moves it. Against Foxburg's 188-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Foxburg
Each reading below is measured for Foxburg itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredFoxburg runs about 188 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
MeasuredFoxburg 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 Foxburg is in
Foxburg sits in the Western Allegheny Plateau — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Foxburg's own centroid rather than borrowed from Clarion County.
What Grows in Foxburg
Every plant below cleared Foxburg's own zone 6a and its 188-day season. Each card opens that plant's Pennsylvania profile. How we score.
Is it too late to plant in Foxburg?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Mar 27; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 24 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 29 — 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 Foxburg
Spotted lanternfly documented 5 miles from Foxburg, first recorded 2021. What to watch for.
What's on the federal record near Foxburg
Closest first, within ~10 miles of Foxburg. Listing isn't leaking, and distance isn't exposure.
- ALLEGHENY CLARION VALLEY SCHUnderground Storage Tanks · 1100 ft
- PARKER SAND & GRAVELUnderground Storage Tanks · 2.2 mi
- DOWNINGS SVCUnderground Storage Tanks · 2.3 mi
- WELTERS COUNTRY MKTUnderground Storage Tanks · 2.7 mi
- LINNONS BIG SIX SHOPPERUnderground Storage Tanks · 2.7 mi
- HORNER MEMUnderground Storage Tanks · 2.8 mi
- UNI MARTUnderground Storage Tanks · 2.8 mi
- COURSON GARAGE BISHOP MOTORSUnderground Storage Tanks · 2.8 mi
- UFP PARKERUnderground Storage Tanks · 2.9 mi
- QUALA SERVICES LLCBrownfields · 2.9 mi
- EMLENTON IGAUnderground Storage Tanks · 2.9 mi
- EMLENTON BP 731Underground Storage Tanks · 2.9 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Foxburg'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 Foxburg.
Sources Checked
within ~10 miles of Foxburg
Severity Distribution
within ~10 miles of Foxburg
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Foxburg, two things run higher than the national average within ~10 miles of Foxburg — Toxics Release Inventory (11 sites) and Nitrate (40 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Foxburg
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 Foxburg average
Your land is one point inside Foxburg
Everything above resolves to Foxburg as a whole — one PHZM band and one 28°F frost record, read across 236 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 Foxburg Average
Foxburg Average
- ●USDA Zones 6a, averaged across Foxburg
- ●One soil character for all of Foxburg
- ●Frost dates read at Foxburg's scale: Apr 24 to Oct 29
YOUR Parcel
- ✓Your exact zone, not Foxburg's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Foxburg
Pull a site-specific report for your exact address in Foxburg, Pennsylvania — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Foxburg averages can't show:
We read public map data around Foxburg — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Foxburg average
How we know this about Foxburg
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 Foxburg’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 Foxburg
When does frost risk typically end in Foxburg?
The last hard freeze (28°F) in Foxburg typically lands around Apr 24, 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 15.
When is the first frost in Foxburg?
The first hard freeze (28°F) in Foxburg typically arrives around Oct 29, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 15, so the watching starts about Sep 29 — about 188 days after the spring freeze cleared.
How long is the growing season in Foxburg?
Measured between 28°F hard freezes, Foxburg sees about 188 frost-free days — roughly Apr 24 through Oct 29, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 15 to Oct 15, about 153 days.
Is the soil safe to grow vegetables in Foxburg?
The federal record around Foxburg is a meaningful one — 129 documented sites, mostly Underground Storage Tanks entries (61), the nearest Underground Storage Tanks record about 0.2 miles 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 Foxburg?
From about Sep 29 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 29 (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 29. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Foxburg's scale — its 6a band and its 188-day season. Your yard writes its own version of Foxburg'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 Foxburg’s own scale
7 of the readings below were taken at Foxburg's own scale — its own ~188-day season between 28°F freezes, the 236 acres it covers and 129 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Foxburg's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Foxburg's own 28°F hard-freeze dates, about Apr 24 and Oct 29 and the ~188-day span between themNOAA 1991–2020 Climate Normals
- 129 documented contamination sites on the federal record near Foxburg, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Foxburg's boundary and the 236 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~188-day seasonGrowable Ground crop-matching engine
- The ecoregion at Foxburg's own centroid, the Western Allegheny PlateauUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Foxburglydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Foxburg's 236 acres read through its county's SSURGO summaryfrom Clarion County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Clarion County
- The growing challenges every Pennsylvania grower plans around — written at state scale, so they stay on the state guidefrom Pennsylvania
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Clarion County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Foxburg's 236 acreswhy one lot differs from the next →
- Which side of Foxburg you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 236 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.2 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 Foxburg-wide figureread your own land →
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