Springboro, Pennsylvania, sits in USDA hardiness zone 6a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Growers here do well with cabbage, hazelnut, lavender, and collard greens — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Springboro, 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 Springboro 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 Springboro — soil, climate, flood, and parcel records. How we handle your address.
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Springboro — the short answer
Springboro, Pennsylvania: USDA zone 6a, about 191 days between hard freezes, across 542 acres of town.
- USDA zone
- 6a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 25
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Nov 2
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~191
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 542 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 6a is Springboro's average, not your lot's — a low corner or a tree line moves it. Against Springboro's 191-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Springboro
Each reading below is measured for Springboro itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredSpringboro runs about 191 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
MeasuredSpringboro sits in USDA hardiness zone 6a.
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 Springboro is in
Springboro sits in the Erie Drift Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Springboro's own centroid rather than borrowed from Crawford County.
What Grows in Springboro
Every plant below cleared Springboro's own zone 6a and its 191-day season. Each card opens that plant's Pennsylvania profile. How we score.
Is it too late to plant in Springboro?
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 28; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 25 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 2 — long-season crops need about 90 days of runway, quick greens only 30. Late in the year the fall bench takes over — quick greens, radishes, and garlic that repays you next summer.
Documented around Springboro
Spotted lanternfly documented 6 miles from Springboro, first recorded 2021. What to watch for.
What's on the federal record near Springboro
Closest first, within ~10 miles of Springboro. Listing isn't leaking, and distance isn't exposure.
- T JONESUnderground Storage Tanks · 750 ft
- WALLACE M HYDE JRUnderground Storage Tanks · 1200 ft
- CW 1929Nitrate · 1300 ft
- GREENE ACRES FARMUnderground Storage Tanks · 0.9 mi
- CW 3-2Nitrate · 1.5 mi
- PALMER SNYDER FURNITURE CO.Brownfields · 2.7 mi
- CONNEAUTVILLE KEYSTONEUnderground Storage Tanks · 2.8 mi
- SCHMITT SALES SAMUELS MKTUnderground Storage Tanks · 2.9 mi
- ROBERT GRAHAM & SONS INCUnderground Storage Tanks · 3.0 mi
- ALLTEL PAUnderground Storage Tanks · 3.0 mi
- JOSEPH ARENDASH CONTRACTINGUnderground Storage Tanks · 3.1 mi
- ASHLAND BULK CONNEAUTVILLEUnderground Storage Tanks · 3.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Springboro'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 Springboro.
Total Sites
86
within ~10 miles of Springboro
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Springboro
Severity Distribution
within ~10 miles of Springboro
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Springboro, Nitrate runs higher than the national average — 30 sites within ~10 miles of Springboro. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
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 Springboro
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 Springboro average
Your land is one point inside Springboro
Everything above resolves to Springboro as a whole — one PHZM band and one 28°F frost record, read across 542 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 Springboro Average
Springboro Average
- ●USDA Zones 6a, averaged across Springboro
- ●One soil character for all of Springboro
- ●Frost dates read at Springboro's scale: Apr 25 to Nov 2
YOUR Parcel
- ✓Your exact zone, not Springboro's 6a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Springboro
Pull a site-specific report for your exact address in Springboro, Pennsylvania — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Springboro averages can't show:
We read public map data around Springboro — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Springboro average
How we know this about Springboro
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 Springboro’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 Springboro
When does frost risk typically end in Springboro?
The last hard freeze (28°F) in Springboro typically lands around Apr 25, 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 16.
When is the first frost in Springboro?
The first hard freeze (28°F) in Springboro typically arrives around Nov 2, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 19, so the watching starts about Oct 3 — about 191 days after the spring freeze cleared.
How long is the growing season in Springboro?
Measured between 28°F hard freezes, Springboro sees about 191 frost-free days — roughly Apr 25 through Nov 2, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 16 to Oct 19, about 156 days.
Is the soil safe to grow vegetables in Springboro?
The federal record around Springboro is a meaningful one — 86 documented sites, mostly Underground Storage Tanks entries (38), the nearest Underground Storage Tanks record about 0.1 miles 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 Springboro?
From about Oct 3 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 2 (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 2. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Springboro's scale — its 6a band and its 191-day season. Your yard writes its own version of Springboro'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 Springboro’s own scale
7 of the readings below were taken at Springboro's own scale — its own ~191-day season between 28°F freezes, the 542 acres it covers and 86 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Springboro's own USDA hardiness band, zones 6aUSDA PHZM 2023
- Springboro's own 28°F hard-freeze dates, about Apr 25 and Nov 2 and the ~191-day span between themNOAA 1991–2020 Climate Normals
- 86 documented contamination sites on the federal record near Springboro, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
- Springboro's boundary and the 542 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6a and a ~191-day seasonGrowable Ground crop-matching engine
- The ecoregion at Springboro's own centroid, the Erie Drift PlainUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Springborolydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Springboro's 542 acres read through its county's SSURGO summaryfrom Crawford County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Crawford 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 Crawford County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Springboro's 542 acreswhy one lot differs from the next →
- Which side of Springboro you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 542 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.1 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 Springboro-wide figureread your own land →
More in Pennsylvania
Wider growing context
What grows across PennsylvaniaSpringboro sits outside our named growing regions, so Pennsylvania as a whole is its closest context here.
Nearby growing guides