Morrisville, Pennsylvania, sits in USDA hardiness zone 6b — a zone band wide enough that plant choice, not possibility, is the interesting question.
Reliable performers under these conditions include cabbage, blackberry, california poppy, and collard greens; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Morrisville, 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 Morrisville 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 Morrisville — soil, climate, flood, and parcel records. How we handle your address.
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Morrisville — the short answer
Morrisville, Pennsylvania: USDA zone 6b, about 192 days between hard freezes, across 986 acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 15
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 24
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~192
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 986 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 Morrisville's average, not your lot's — a low corner or a tree line moves it. Against Morrisville's 192-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Morrisville
Each reading below is measured for Morrisville itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredMorrisville runs about 192 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
MeasuredMorrisville 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 Morrisville is in
Morrisville sits in the Western Allegheny Plateau — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Morrisville's own centroid rather than borrowed from Greene County.
What Grows in Morrisville
Every plant below cleared Morrisville's own zone 6b and its 192-day season. Each card opens that plant's Pennsylvania profile. How we score.
Is it too late to plant in Morrisville?
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 18; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 15 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 24 — long-season crops need about 90 days of runway, quick greens only 30. Even past midsummer there is room for a true fall garden here, and garlic planted near the close carries the momentum into next year.
Documented around Morrisville
Spotted lanternfly documented 3 miles from Morrisville, first recorded 2021. What to watch for.
What's on the federal record near Morrisville
Closest first, within ~10 miles of Morrisville. Listing isn't leaking, and distance isn't exposure.
- HOWARD, JOHN CPJE INCBrownfields · 1600 ft
- NORGE VILLAGEBrownfields · 1600 ft
- BFS WAYNESBURG DOWNTOWNUnderground Storage Tanks · 1700 ft
- 7 ELEVEN 36153Underground Storage Tanks · 1700 ft
- GREENE CNTY MEM HOSPUnderground Storage Tanks · 1700 ft
- BLAKERS AUTO SVCUnderground Storage Tanks · 1800 ft
- ADVANCE AUTO PARTS #1202Brownfields · 1800 ft
- HOWARD MTRSBrownfields · 2000 ft
- NICKLES BAKERY INCBrownfields · 2100 ft
- NICKLES BAKERY INCUnderground Storage Tanks · 2100 ft
- STALEY TIRE CTRUnderground Storage Tanks · 2100 ft
- GREEN COUNTY HOSPITALBrownfields · 2100 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Morrisville'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 Morrisville.
Total Sites
177
within ~10 miles of Morrisville
Risk Level
Moderate
Highest-severity
4 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Morrisville
Severity Distribution
within ~10 miles of Morrisville
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 Morrisville
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 Morrisville average
Your land is one point inside Morrisville
Everything above resolves to Morrisville as a whole — one PHZM band and one 28°F frost record, read across 986 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 Morrisville Average
Morrisville Average
- ●USDA Zones 6b, averaged across Morrisville
- ●One soil character for all of Morrisville
- ●Frost dates read at Morrisville's scale: Apr 15 to Oct 24
YOUR Parcel
- ✓Your exact zone, not Morrisville's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Morrisville
Pull a site-specific report for your exact address in Morrisville, Pennsylvania — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Morrisville averages can't show:
We read public map data around Morrisville — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Morrisville average
How we know this about Morrisville
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 Morrisville’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 Morrisville
When does frost risk typically end in Morrisville?
The last hard freeze (28°F) in Morrisville typically lands around Apr 15, 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 6.
When is the first frost in Morrisville?
The first hard freeze (28°F) in Morrisville typically arrives around Oct 24, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 10, so the watching starts about Sep 24 — about 192 days after the spring freeze cleared.
How long is the growing season in Morrisville?
Measured between 28°F hard freezes, Morrisville sees about 192 frost-free days — roughly Apr 15 through Oct 24, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 6 to Oct 10, about 157 days.
Is the soil safe to grow vegetables in Morrisville?
The federal record around Morrisville shows 177 documented sites, mostly Underground Storage Tanks entries (91), the nearest Brownfields record about 0.3 miles out — a typical footprint for a growing area, and proximity to a documented site is information, not a diagnosis of any one yard. It's worth seeing which recorded sites sit closest to where you grow, and testing the soil before new food beds near any of them.
How do I protect my plants from frost in Morrisville?
From about Sep 24 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 24 (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 24. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Morrisville's scale — its 6b band and its 192-day season. Your yard writes its own version of Morrisville'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 Morrisville’s own scale
7 of the readings below were taken at Morrisville's own scale — its own ~192-day season between 28°F freezes, the 986 acres it covers and 177 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Morrisville's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Morrisville's own 28°F hard-freeze dates, about Apr 15 and Oct 24 and the ~192-day span between themNOAA 1991–2020 Climate Normals
- 177 documented contamination sites on the federal record near Morrisville, the closest Brownfields record about 0.3 miles out from the town centreFederal environmental registers
- Morrisville's boundary and the 986 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~192-day seasonGrowable Ground crop-matching engine
- The ecoregion at Morrisville's own centroid, the Western Allegheny PlateauUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Morrisvillelydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Morrisville's 986 acres read through its county's SSURGO summaryfrom Greene County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Greene 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 Greene County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Morrisville's 986 acreswhy one lot differs from the next →
- Which side of Morrisville you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 986 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record about 0.3 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 Morrisville-wide figureread your own land →
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