Lansdale, Pennsylvania, sits in USDA hardiness zone 7a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Crops well matched to these conditions include cabbage, hazelnut, california poppy, and collard greens — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in Lansdale, 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 Lansdale 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 Lansdale — soil, climate, flood, and parcel records. How we handle your address.
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Lansdale — the short answer
Lansdale, Pennsylvania: USDA zone 7a, about 214 days between hard freezes, across 2K acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 3
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 3
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~214
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 2K 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 7a is Lansdale's average, not your lot's — a low corner or a tree line moves it. Against Lansdale's 214-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Lansdale
Each reading below is measured for Lansdale itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredLansdale runs about 214 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
MeasuredLansdale sits in USDA hardiness zone 7a.
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 Lansdale is in
Lansdale sits in the Northern Piedmont — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Lansdale's own centroid rather than borrowed from Montgomery County.
What Grows in Lansdale
Every plant below cleared Lansdale's own zone 7a and its 214-day season. Each card opens that plant's Pennsylvania profile. How we score.
Is it too late to plant in Lansdale?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Mar 6; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 3 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 3 — long-season crops need about 90 days of runway, quick greens only 30. With a season this long, “too late” mostly means “switch crops” — second sowings and a full fall garden are the norm, with garlic closing the year.
Documented around Lansdale
Spotted lanternfly documented 2 miles from Lansdale, first recorded 2017. What to watch for.
What's on the federal record near Lansdale
Closest first, within ~10 miles of Lansdale. Listing isn't leaking, and distance isn't exposure.
- NORTH PENN WATER AUTHUnderground Storage Tanks · 200 ft
- REGENT VALLEY BLDRUnderground Storage Tanks · 500 ft
- GHOTRA ENTERPRISEUnderground Storage Tanks · 500 ft
- LUKOIL 69223Underground Storage Tanks · 600 ft
- LANSDALE UNITED METH CHUnderground Storage Tanks · 650 ft
- DON KIESER TIRE & AUTO PARTSUnderground Storage Tanks · 950 ft
- BJS WHOLESALE CLUB NO 369 OSGBrownfields · 1000 ft
- GEO M YOCUM INCUnderground Storage Tanks · 1100 ft
- REP INDUnderground Storage Tanks · 1100 ft
- JOSEPH T PRESTON INCUnderground Storage Tanks · 1200 ft
- LANSDALE CTL OFCUnderground Storage Tanks · 1200 ft
- MID STATES SUPPLY INCUnderground Storage Tanks · 1300 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Lansdale'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 Lansdale.
Sources Checked
within ~10 miles of Lansdale
Severity Distribution
within ~10 miles of Lansdale
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Lansdale, Superfund runs higher than the national average — 30 sites within ~10 miles of Lansdale. That's not a problem with your land — it's information about it.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in Lansdale
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 Lansdale average
Your land is one point inside Lansdale
Everything above resolves to Lansdale as a whole — one PHZM band and one 28°F frost record, read across 2K 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 Lansdale Average
Lansdale Average
- ●USDA Zones 7a, averaged across Lansdale
- ●One soil character for all of Lansdale
- ●Frost dates read at Lansdale's scale: Apr 3 to Nov 3
YOUR Parcel
- ✓Your exact zone, not Lansdale's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Lansdale
Pull a site-specific report for your exact address in Lansdale, Pennsylvania — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Lansdale averages can't show:
We read public map data around Lansdale — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Lansdale average
How we know this about Lansdale
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 Lansdale’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 Lansdale
When does frost risk typically end in Lansdale?
The last hard freeze (28°F) in Lansdale typically lands around Apr 3, 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 Apr 24.
When is the first frost in Lansdale?
The first hard freeze (28°F) in Lansdale typically arrives around Nov 3, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 20, so the watching starts about Oct 4 — about 214 days after the spring freeze cleared.
How long is the growing season in Lansdale?
Measured between 28°F hard freezes, Lansdale sees about 214 frost-free days — roughly Apr 3 through Nov 3, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 24 to Oct 20, about 179 days.
Is the soil safe to grow vegetables in Lansdale?
The federal record around Lansdale runs heavier than most — 2,309 documented sites, mostly Underground Storage Tanks entries (1,216), the nearest Underground Storage Tanks record under a tenth of a mile out — so test the soil before planting food in the ground, and raised beds with clean imported soil grow well in the meantime. Even here, proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what's recorded and where.
How do I protect my plants from frost in Lansdale?
From about Oct 4 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 Nov 3 (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 Nov 3. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Lansdale's scale — its 7a band and its 214-day season. Your yard writes its own version of Lansdale'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 Lansdale’s own scale
7 of the readings below were taken at Lansdale's own scale — its own ~214-day season between 28°F freezes, the 1,916 acres it covers and 2,309 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Lansdale's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Lansdale's own 28°F hard-freeze dates, about Apr 3 and Nov 3 and the ~214-day span between themNOAA 1991–2020 Climate Normals
- 2,309 documented contamination sites on the federal record near Lansdale, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Lansdale's boundary and the 1,916 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~214-day seasonGrowable Ground crop-matching engine
- The ecoregion at Lansdale's own centroid, the Northern PiedmontUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Lansdalelydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Lansdale's 1,916 acres read through its county's SSURGO summaryfrom Montgomery County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Montgomery 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 Montgomery County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Lansdale's 1,916 acreswhy one lot differs from the next →
- Which side of Lansdale you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,916 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 Lansdale-wide figureread your own land →
More in Pennsylvania
Wider growing context
What grows across PennsylvaniaLansdale sits outside our named growing regions, so Pennsylvania as a whole is its closest context here.
Nearby growing guides