Ancient Oaks, Pennsylvania, sits in USDA hardiness zone 7a — a zone band wide enough that plant choice, not possibility, is the interesting question.
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 Ancient Oaks, 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 Ancient Oaks 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 Ancient Oaks — soil, climate, flood, and parcel records. How we handle your address.
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Ancient Oaks — the short answer
Ancient Oaks, Pennsylvania: USDA zone 7a, about 213 days between hard freezes, across 2K acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 5
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 4
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~213
- 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 Ancient Oaks's average, not your lot's — a low corner or a tree line moves it. Against Ancient Oaks's 213-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Ancient Oaks
Each reading below is measured for Ancient Oaks itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredAncient Oaks runs about 213 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
MeasuredAncient Oaks 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 Ancient Oaks is in
Ancient Oaks sits in the Ridge and Valley — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Ancient Oaks's own centroid rather than borrowed from Lehigh County.
What Grows in Ancient Oaks
Every plant below cleared Ancient Oaks's own zone 7a and its 213-day season. Each card opens that plant's Pennsylvania profile. How we score.
Is it too late to plant in Ancient Oaks?
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 8; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 5 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 4 — long-season crops need about 90 days of runway, quick greens only 30. Here the season winds down slowly: late sowings, a real autumn harvest, and garlic in the ground before the first hard freeze.
Documented around Ancient Oaks
Spotted lanternfly documented 3 miles from Ancient Oaks, first recorded 2015. What to watch for.
What's on the federal record near Ancient Oaks
Closest first, within ~10 miles of Ancient Oaks. Listing isn't leaking, and distance isn't exposure.
- LE 711Nitrate · 0.6 mi
- LE 860 Lehigh County Observation WellNitrate · 0.7 mi
- LE 861Nitrate · 0.9 mi
- KENOSHA AUTO TRANSPORT CORPUnderground Storage Tanks · 1.0 mi
- LE 403Nitrate · 1.0 mi
- LE 653Nitrate · 1.1 mi
- REFRIGERANT RECOVERY CORP OF AMERICABrownfields · 1.1 mi
- GIANT FOOD STORE 6457Underground Storage Tanks · 1.2 mi
- PRESTIGE CLEANERSBrownfields · 1.2 mi
- SEARS HARDWARE NO 5164Brownfields · 1.2 mi
- MIERS WASHEREL INCUnderground Storage Tanks · 1.2 mi
- DAVID PETRAKUnderground Storage Tanks · 1.2 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Ancient Oaks'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 Ancient Oaks.
Sources Checked
within ~10 miles of Ancient Oaks
Severity Distribution
within ~10 miles of Ancient Oaks
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 Ancient Oaks
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 Ancient Oaks average
Your land is one point inside Ancient Oaks
Everything above resolves to Ancient Oaks 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 Ancient Oaks Average
Ancient Oaks Average
- ●USDA Zones 7a, averaged across Ancient Oaks
- ●One soil character for all of Ancient Oaks
- ●Frost dates read at Ancient Oaks's scale: Apr 5 to Nov 4
YOUR Parcel
- ✓Your exact zone, not Ancient Oaks's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Ancient Oaks
Pull a site-specific report for your exact address in Ancient Oaks, Pennsylvania — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Ancient Oaks averages can't show:
We read public map data around Ancient Oaks — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Ancient Oaks average
How we know this about Ancient Oaks
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 Ancient Oaks’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 Ancient Oaks
When does frost risk typically end in Ancient Oaks?
The last hard freeze (28°F) in Ancient Oaks typically lands around Apr 5, 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 26.
When is the first frost in Ancient Oaks?
The first hard freeze (28°F) in Ancient Oaks typically arrives around Nov 4, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 21, so the watching starts about Oct 5 — about 213 days after the spring freeze cleared.
How long is the growing season in Ancient Oaks?
Measured between 28°F hard freezes, Ancient Oaks sees about 213 frost-free days — roughly Apr 5 through Nov 4, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 26 to Oct 21, about 178 days.
Is the soil safe to grow vegetables in Ancient Oaks?
The federal record around Ancient Oaks runs heavier than most — 1,529 documented sites, mostly Underground Storage Tanks entries (712), the nearest Nitrate record about 0.6 miles 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 Ancient Oaks?
From about Oct 5 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 4 (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 4. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Ancient Oaks's scale — its 7a band and its 213-day season. Your yard writes its own version of Ancient Oaks'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 Ancient Oaks’s own scale
7 of the readings below were taken at Ancient Oaks's own scale — its own ~213-day season between 28°F freezes, the 1,551 acres it covers and 1,529 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Ancient Oaks's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Ancient Oaks's own 28°F hard-freeze dates, about Apr 5 and Nov 4 and the ~213-day span between themNOAA 1991–2020 Climate Normals
- 1,529 documented contamination sites on the federal record near Ancient Oaks, the closest Nitrate record about 0.6 miles out from the town centreFederal environmental registers
- Ancient Oaks's boundary and the 1,551 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~213-day seasonGrowable Ground crop-matching engine
- The ecoregion at Ancient Oaks's own centroid, the Ridge and ValleyUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Ancient Oakslydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Ancient Oaks's 1,551 acres read through its county's SSURGO summaryfrom Lehigh County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Lehigh 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 Lehigh County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Ancient Oaks's 1,551 acreswhy one lot differs from the next →
- Which side of Ancient Oaks you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,551 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate record about 0.6 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 Ancient Oaks-wide figureread your own land →