Hollidaysburg, Pennsylvania, sits in USDA hardiness zone 6b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Among the crops suited to this profile: cabbage, hazelnut, lavender, and collard greens. The site-level story — soil, sun, drainage — decides the rest.
Even in Hollidaysburg, 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 Hollidaysburg 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 Hollidaysburg — soil, climate, flood, and parcel records. How we handle your address.
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Hollidaysburg — the short answer
Hollidaysburg, Pennsylvania: USDA zone 6b, about 202 days between hard freezes, across 1K acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 11
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 30
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~202
- 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 Hollidaysburg's average, not your lot's — a low corner or a tree line moves it. Against Hollidaysburg's 202-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Hollidaysburg
Each reading below is measured for Hollidaysburg itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredHollidaysburg runs about 202 days between hard freezes — a long growing season.
There is slack for succession plantings and slow-finishing crops: many vegetables can be sown twice, and the heat-lovers have time to ripen fully.
Plan a second sowing of quick crops after the first comes out, and use the fall window most gardeners let sit idle.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredHollidaysburg 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 Hollidaysburg is in
Hollidaysburg sits in the Ridge and Valley — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Hollidaysburg's own centroid rather than borrowed from Blair County.
What Grows in Hollidaysburg
Every plant below cleared Hollidaysburg's own zone 6b and its 202-day season. Each card opens that plant's Pennsylvania profile. How we score.
Is it too late to plant in Hollidaysburg?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Mar 14; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 11 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 30 — long-season crops need about 90 days of runway, quick greens only 30. A long window like this one runs successions deep into fall — and even its last weeks take quick greens and garlic.
Documented around Hollidaysburg
Spotted lanternfly documented 2 miles from Hollidaysburg, first recorded 2019. What to watch for.
What's on the federal record near Hollidaysburg
Closest first, within ~10 miles of Hollidaysburg. Listing isn't leaking, and distance isn't exposure.
- HOLLIDAYSBURG DIAL OFCUnderground Storage Tanks · 300 ft
- BLAIR ELEM SCHUnderground Storage Tanks · 350 ft
- SUNOCO SVC STABrownfields · 500 ft
- RAGINI & DHRUV INCUnderground Storage Tanks · 550 ft
- PENN STREET CTRUnderground Storage Tanks · 850 ft
- BLAIR CO HIGHWAY DEPTUnderground Storage Tanks · 900 ft
- J&R AUTO SVCBrownfields · 1200 ft
- HOLLIDAYSBURG BORO PARKING LOTUnderground Storage Tanks · 1200 ft
- NICS GRAB N GOUnderground Storage Tanks · 1300 ft
- MOUNTAINS BORONUnderground Storage Tanks · 1300 ft
- 115 S JUNIATA STUnderground Storage Tanks · 1500 ft
- PAUL GOOD SITEUnderground Storage Tanks · 1500 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Hollidaysburg'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 Hollidaysburg.
Sources Checked
within ~10 miles of Hollidaysburg
Severity Distribution
within ~10 miles of Hollidaysburg
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 Hollidaysburg
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 Hollidaysburg average
Your land is one point inside Hollidaysburg
Everything above resolves to Hollidaysburg 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 Hollidaysburg Average
Hollidaysburg Average
- ●USDA Zones 6b, averaged across Hollidaysburg
- ●One soil character for all of Hollidaysburg
- ●Frost dates read at Hollidaysburg's scale: Apr 11 to Oct 30
YOUR Parcel
- ✓Your exact zone, not Hollidaysburg's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Hollidaysburg
Pull a site-specific report for your exact address in Hollidaysburg, Pennsylvania — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Hollidaysburg averages can't show:
We read public map data around Hollidaysburg — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Hollidaysburg average
How we know this about Hollidaysburg
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 Hollidaysburg’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 Hollidaysburg
When does frost risk typically end in Hollidaysburg?
The last hard freeze (28°F) in Hollidaysburg typically lands around Apr 11, 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 2.
When is the first frost in Hollidaysburg?
The first hard freeze (28°F) in Hollidaysburg typically arrives around Oct 30, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 16, so the watching starts about Sep 30 — about 202 days after the spring freeze cleared.
How long is the growing season in Hollidaysburg?
Measured between 28°F hard freezes, Hollidaysburg sees about 202 frost-free days — roughly Apr 11 through Oct 30, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 2 to Oct 16, about 167 days.
Is the soil safe to grow vegetables in Hollidaysburg?
The federal record around Hollidaysburg is a meaningful one — 602 documented sites, mostly Underground Storage Tanks entries (321), 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 Hollidaysburg?
From about Sep 30 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 30 (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 30. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Hollidaysburg's scale — its 6b band and its 202-day season. Your yard writes its own version of Hollidaysburg'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 Hollidaysburg’s own scale
7 of the readings below were taken at Hollidaysburg's own scale — its own ~202-day season between 28°F freezes, the 1,494 acres it covers and 602 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Hollidaysburg's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Hollidaysburg's own 28°F hard-freeze dates, about Apr 11 and Oct 30 and the ~202-day span between themNOAA 1991–2020 Climate Normals
- 602 documented contamination sites on the federal record near Hollidaysburg, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Hollidaysburg's boundary and the 1,494 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~202-day seasonGrowable Ground crop-matching engine
- The ecoregion at Hollidaysburg's own centroid, the Ridge and ValleyUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Hollidaysburglydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Hollidaysburg's 1,494 acres read through its county's SSURGO summaryfrom Blair County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Blair 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 Blair County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Hollidaysburg's 1,494 acreswhy one lot differs from the next →
- Which side of Hollidaysburg you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,494 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 Hollidaysburg-wide figureread your own land →
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