Blossburg, Pennsylvania, sits in USDA hardiness zone 5b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
On paper, cabbage, cranberry, lavender, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Blossburg, 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 Blossburg 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 Blossburg — soil, climate, flood, and parcel records. How we handle your address.
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Blossburg — the short answer
Blossburg, Pennsylvania: USDA zone 5b, about 165 days between hard freezes, across 3K acres of town.
- USDA zone
- 5b
- USDA PHZM 2023
- Last hard freeze (28°F)
- May 2
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 14
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~165
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 3K 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 5b is Blossburg's average, not your lot's — a low corner or a tree line moves it. Against Blossburg's 165-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Blossburg
Each reading below is measured for Blossburg itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredBlossburg runs about 165 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
MeasuredBlossburg sits in USDA hardiness zone 5b.
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 Blossburg is in
Blossburg sits in the North Central Appalachians — EPA Level III, inside the wider Northern Forests. That is read at Blossburg's own centroid rather than borrowed from Tioga County.
What Grows in Blossburg
Every plant below cleared Blossburg's own zone 5b and its 165-day season. Each card opens that plant's Pennsylvania profile. How we score.
Is it too late to plant in Blossburg?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Apr 4; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near May 2 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 14 — 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 Blossburg
Spotted lanternfly documented 2 miles from Blossburg, first recorded 2019. What to watch for.
What's on the federal record near Blossburg
Closest first, within ~10 miles of Blossburg. Listing isn't leaking, and distance isn't exposure.
- ACORN MKT 35Underground Storage Tanks · 1100 ft
- BLOSSBURG BORO PARKUnderground Storage Tanks · 1400 ft
- JIMS SVC STAUnderground Storage Tanks · 1500 ft
- WARD MFG PLT 1 & 2Brownfields · 0.6 mi
- WARD MFG PLT 1 & 2Toxics Release Inventory · 0.6 mi
- KWIK FILL M0390Underground Storage Tanks · 0.7 mi
- DANDY MINI MART 23Underground Storage Tanks · 0.8 mi
- TIOGA CNTY LDFLUnderground Storage Tanks · 0.8 mi
- BLOSS GULFUnderground Storage Tanks · 0.8 mi
- BLOSSBURG BEVERAGE COUnderground Storage Tanks · 0.9 mi
- KWIK FILL M0390 390Brownfields · 1.5 mi
- LYCOMING SILICA SAND BLOSSBURGBrownfields · 1.9 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Blossburg'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 Blossburg.
Total Sites
132
within ~10 miles of Blossburg
Risk Level
Moderate
Highest-severity
3 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Blossburg
Severity Distribution
within ~10 miles of Blossburg
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Blossburg, CAFO runs higher than the national average — 5 sites within ~10 miles of Blossburg. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
CAFO: CAFOs pose a different contamination profile than chemical sources.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Check your specific parcel in Blossburg
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 Blossburg average
Your land is one point inside Blossburg
Everything above resolves to Blossburg as a whole — one PHZM band and one 28°F frost record, read across 3K 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 Blossburg Average
Blossburg Average
- ●USDA Zones 5b, averaged across Blossburg
- ●One soil character for all of Blossburg
- ●Frost dates read at Blossburg's scale: May 2 to Oct 14
YOUR Parcel
- ✓Your exact zone, not Blossburg's 5b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Blossburg
Pull a site-specific report for your exact address in Blossburg, Pennsylvania — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Blossburg averages can't show:
We read public map data around Blossburg — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Blossburg average
How we know this about Blossburg
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 Blossburg’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 Blossburg
When does frost risk typically end in Blossburg?
The last hard freeze (28°F) in Blossburg typically lands around May 2, 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 23.
When is the first frost in Blossburg?
The first hard freeze (28°F) in Blossburg typically arrives around Oct 14, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Sep 30, so the watching starts about Sep 14 — about 165 days after the spring freeze cleared.
How long is the growing season in Blossburg?
Measured between 28°F hard freezes, Blossburg sees about 165 frost-free days — roughly May 2 through Oct 14, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 23 to Sep 30, about 130 days.
Is the soil safe to grow vegetables in Blossburg?
The federal record around Blossburg shows 132 documented sites, mostly Underground Storage Tanks entries (53), the nearest Underground Storage Tanks record about 0.2 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 Blossburg?
From about Sep 14 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 14 (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 14. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Blossburg's scale — its 5b band and its 165-day season. Your yard writes its own version of Blossburg'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 Blossburg’s own scale
7 of the readings below were taken at Blossburg's own scale — its own ~165-day season between 28°F freezes, the 2,973 acres it covers and 132 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Blossburg's own USDA hardiness band, zones 5bUSDA PHZM 2023
- Blossburg's own 28°F hard-freeze dates, about May 2 and Oct 14 and the ~165-day span between themNOAA 1991–2020 Climate Normals
- 132 documented contamination sites on the federal record near Blossburg, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Blossburg's boundary and the 2,973 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 5b and a ~165-day seasonGrowable Ground crop-matching engine
- The ecoregion at Blossburg's own centroid, the North Central AppalachiansUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Blossburglydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Blossburg's 2,973 acres read through its county's SSURGO summaryfrom Tioga County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Tioga 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 Tioga County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Blossburg's 2,973 acreswhy one lot differs from the next →
- Which side of Blossburg you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,973 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 Blossburg-wide figureread your own land →