Duboistown, Pennsylvania, sits in USDA hardiness zone 6b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
A short list that earns its place here — cabbage, blackberry, california poppy, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Duboistown, 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 Duboistown 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 Duboistown — soil, climate, flood, and parcel records. How we handle your address.
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Duboistown — the short answer
Duboistown, Pennsylvania: USDA zone 6b, about 192 days between hard freezes, across 353 acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 18
- 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
- ~192
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 353 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 Duboistown's average, not your lot's — a low corner or a tree line moves it. Against Duboistown's 192-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Duboistown
Each reading below is measured for Duboistown itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length
MeasuredDuboistown runs about 192 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
MeasuredDuboistown 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 Duboistown is in
Duboistown sits in the Ridge and Valley — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Duboistown's own centroid, and it is not what its county reads: Lycoming County is mostly North Central Appalachians. The wider page above you is answering a different question about different ground.
What Grows in Duboistown
Every plant below cleared Duboistown's own zone 6b and its 192-day season. Each card opens that plant's Pennsylvania profile. How we score.






























Is it too late to plant in Duboistown?
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 Mar 21; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 18 (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. As the window narrows, the plantings just get faster — fall brassicas, then greens, then garlic to finish.
Documented around Duboistown
Spotted lanternfly documented 3 miles from Duboistown, first recorded 2019. What to watch for.
What's on the federal record near Duboistown
Closest first, within ~10 miles of Duboistown. Listing isn't leaking, and distance isn't exposure.
- TURKEY HILL 201Underground Storage Tanks · 350 ft
- LYCOMING GAS & OIL CORPUnderground Storage Tanks · 650 ft
- DUBOISTOWN MUNI BLDGUnderground Storage Tanks · 750 ft
- FORCED MAIN FACUnderground Storage Tanks · 1100 ft
- WEST BRANCH MOTOR BOAT ASSOCUnderground Storage Tanks · 1700 ft
- LY 774Nitrate · 1900 ft
- WILLIAMSPORT SANITARY AUTHORITY - WEST PLANTBrownfields · 2300 ft
- LUNDY CONSTUnderground Storage Tanks · 0.7 mi
- KNEPS LANDSCAPING LLCToxics Release Inventory · 0.7 mi
- SUSQUEHANNA SUPPLY C/WILLIAMSPORT PLTBrownfields · 0.7 mi
- SUSQUEHANNA SUPPLYUnderground Storage Tanks · 0.7 mi
- PORTION PACK FOOD SVCUnderground Storage Tanks · 0.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Duboistown'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 Duboistown.
Sources Checked
within ~10 miles of Duboistown
Severity Distribution
within ~10 miles of Duboistown
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in Duboistown
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 Duboistown average
Your land is one point inside Duboistown
Everything above resolves to Duboistown as a whole — one PHZM band and one 28°F frost record, read across 353 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 Duboistown Average
Duboistown Average
- ●USDA Zones 6b, averaged across Duboistown
- ●One soil character for all of Duboistown
- ●Frost dates read at Duboistown's scale: Apr 18 to Oct 27
YOUR Parcel
- ✓Your exact zone, not Duboistown's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Duboistown
Pull a site-specific report for your exact address in Duboistown, Pennsylvania — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Duboistown averages can't show:
We read public map data around Duboistown — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Duboistown average
How we know this about Duboistown
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 Duboistown’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 Duboistown
When does frost risk typically end in Duboistown?
The last hard freeze (28°F) in Duboistown typically lands around Apr 18, 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 9.
When is the first frost in Duboistown?
The first hard freeze (28°F) in Duboistown 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 192 days after the spring freeze cleared.
How long is the growing season in Duboistown?
Measured between 28°F hard freezes, Duboistown sees about 192 frost-free days — roughly Apr 18 through Oct 27, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 9 to Oct 13, about 157 days.
Is the soil safe to grow vegetables in Duboistown?
The federal record around Duboistown is a meaningful one — 679 documented sites, mostly Underground Storage Tanks entries (374), 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 Duboistown?
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 Duboistown's scale — its 6b band and its 192-day season. Your yard writes its own version of Duboistown'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 Duboistown’s own scale
7 of the readings below were taken at Duboistown's own scale — its own ~192-day season between 28°F freezes, the 353 acres it covers and 679 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Duboistown's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Duboistown's own 28°F hard-freeze dates, about Apr 18 and Oct 27 and the ~192-day span between themNOAA 1991–2020 Climate Normals
- 679 documented contamination sites on the federal record near Duboistown, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Duboistown's boundary and the 353 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~192-day seasonGrowable Ground crop-matching engine
- Duboistown sits in the Ridge and Valley — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Duboistownlydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Duboistown's 353 acres read through its county's SSURGO summaryfrom Lycoming County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Lycoming 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 Lycoming County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Duboistown's 353 acreswhy one lot differs from the next →
- Which side of Duboistown you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 353 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 Duboistown-wide figureread your own land →
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