Coatesville, Pennsylvania, sits in USDA hardiness zone 7a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
These conditions suit cabbage, hazelnut, california poppy, and collard greens — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Coatesville, 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 Coatesville 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 Coatesville — soil, climate, flood, and parcel records. How we handle your address.
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Coatesville — the short answer
Coatesville, Pennsylvania: USDA zone 7a, about 214 days between hard freezes, across 1K acres of city.
- 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 5
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~214
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City 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 7a is Coatesville's average, not your lot's — a low corner or a tree line moves it. Against Coatesville's 214-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Coatesville
Each reading below is measured for Coatesville itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredCoatesville 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
MeasuredCoatesville 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 Coatesville is in
Coatesville sits in the Northern Piedmont — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Coatesville's own centroid rather than borrowed from Chester County.
What Grows in Coatesville
Every plant below cleared Coatesville'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 Coatesville?
Usually not — gardeners here simply switch what goes in the ground as the season moves. 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 5 — 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 Coatesville
Spotted lanternfly documented 3 miles from Coatesville, first recorded 2017. What to watch for.
What's on the federal record near Coatesville
Closest first, within ~10 miles of Coatesville. Listing isn't leaking, and distance isn't exposure.
- OLIVET UNITED METH CHUnderground Storage Tanks · 350 ft
- KANE EDWIN W DDSBrownfields · 550 ft
- MCFALLS COLLISION INCBrownfields · 600 ft
- PRESB CH OF COATESVILLEUnderground Storage Tanks · 600 ft
- COATESVILLE CTL OFCUnderground Storage Tanks · 750 ft
- FAMILY DOLLAR STORES OF PA NO 11095Brownfields · 750 ft
- AMTRAK COATESVILLEUnderground Storage Tanks · 800 ft
- DIANA NORRISUnderground Storage Tanks · 800 ft
- NEWLIN BROSUnderground Storage Tanks · 850 ft
- PARKS AIRPORT CLNR SVCBrownfields · 1500 ft
- COATESVILLE CITY AUTH ANNEXUnderground Storage Tanks · 1600 ft
- LAMBS AUTO SVCUnderground Storage Tanks · 1700 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Coatesville'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 Coatesville.
Sources Checked
within ~10 miles of Coatesville
Severity Distribution
within ~10 miles of Coatesville
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Coatesville, Nitrate runs higher than the national average — 678 sites within ~10 miles of Coatesville. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Coatesville
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 Coatesville average
Your land is one point inside Coatesville
Everything above resolves to Coatesville 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 city 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 Coatesville Average
Coatesville Average
- ●USDA Zones 7a, averaged across Coatesville
- ●One soil character for all of Coatesville
- ●Frost dates read at Coatesville's scale: Apr 5 to Nov 5
YOUR Parcel
- ✓Your exact zone, not Coatesville's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Coatesville
Pull a site-specific report for your exact address in Coatesville, Pennsylvania — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Coatesville averages can't show:
We read public map data around Coatesville — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Coatesville average
How we know this about Coatesville
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Coatesville’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 city grain anywhere on this page — there is no city-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 Coatesville
When does frost risk typically end in Coatesville?
The last hard freeze (28°F) in Coatesville 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 Coatesville?
The first hard freeze (28°F) in Coatesville typically arrives around Nov 5, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 22, so the watching starts about Oct 6 — about 214 days after the spring freeze cleared.
How long is the growing season in Coatesville?
Measured between 28°F hard freezes, Coatesville sees about 214 frost-free days — roughly Apr 5 through Nov 5, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 26 to Oct 22, about 179 days.
Is the soil safe to grow vegetables in Coatesville?
The federal record around Coatesville runs heavier than most — 1,287 documented sites, mostly Nitrate entries (678), 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 Coatesville?
From about Oct 6 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 5 (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 5. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Coatesville's scale — its 7a band and its 214-day season. Your yard writes its own version of Coatesville'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 Coatesville’s own scale
7 of the readings below were taken at Coatesville's own scale — its own ~214-day season between 28°F freezes, the 1,157 acres it covers and 1,287 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Coatesville's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Coatesville's own 28°F hard-freeze dates, about Apr 5 and Nov 5 and the ~214-day span between themNOAA 1991–2020 Climate Normals
- 1,287 documented contamination sites on the federal record near Coatesville, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Coatesville's boundary and the 1,157 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 Coatesville's own centroid, the Northern PiedmontUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Coatesvillelydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Coatesville's 1,157 acres read through its county's SSURGO summaryfrom Chester County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Chester 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 Chester County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Coatesville's 1,157 acreswhy one lot differs from the next →
- Which side of Coatesville you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,157 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 Coatesville-wide figureread your own land →