Middleburg, Pennsylvania, sits in USDA hardiness zone 6b — a zone band wide enough that plant choice, not possibility, is the interesting question.
Among the crops suited to this profile: cabbage, hazelnut, lavender, and collard greens. The site-level story — soil, sun, drainage — decides the rest.
Even in Middleburg, 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 Middleburg 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 Middleburg — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Middleburg — the short answer
Middleburg, Pennsylvania: USDA zone 6b, about 205 days between hard freezes, across 565 acres of town.
- USDA zone
- 6b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 8
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Oct 30
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~205
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 565 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 Middleburg's average, not your lot's — a low corner or a tree line moves it. Against Middleburg's 205-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Middleburg
Each reading below is measured for Middleburg itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredMiddleburg runs about 205 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
MeasuredMiddleburg 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 Middleburg is in
Middleburg sits in the Ridge and Valley — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Middleburg's own centroid rather than borrowed from Snyder County.
What Grows in Middleburg
Every plant below cleared Middleburg's own zone 6b and its 205-day season. Each card opens that plant's Pennsylvania profile. How we score.
Is it too late to plant in Middleburg?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Mar 11; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 8 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Oct 30 — 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 Middleburg
Spotted lanternfly documented 2 miles from Middleburg, first recorded 2020. What to watch for.
What's on the federal record near Middleburg
Closest first, within ~10 miles of Middleburg. Listing isn't leaking, and distance isn't exposure.
- TRINITY UNITED METH CHUnderground Storage Tanks · 200 ft
- SNYDER CNTY GOVTUnderground Storage Tanks · 1000 ft
- YARGERS FARMUnderground Storage Tanks · 1200 ft
- STRAWSER RETREADING & TIRE SVCUnderground Storage Tanks · 1200 ft
- HUMMELS GAS STAUnderground Storage Tanks · 1200 ft
- CARL R HUMMEL CON MDSEUnderground Storage Tanks · 1200 ft
- MIDDLEBURG OILUnderground Storage Tanks · 1200 ft
- MIDDLEBURG BORO BLDGUnderground Storage Tanks · 1300 ft
- RAMBLERS AUTOBODYBrownfields · 1300 ft
- STUCK LEASING COUnderground Storage Tanks · 1400 ft
- MIDDLEBURG BULK PLTUnderground Storage Tanks · 1500 ft
- PROFESSIONAL BLDG SYS MIDDLEBURG PLTToxics Release Inventory · 1600 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Middleburg'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 Middleburg.
Total Sites
291
within ~10 miles of Middleburg
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Middleburg
Severity Distribution
within ~10 miles of Middleburg
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Middleburg, two things run higher than the national average within ~10 miles of Middleburg — CAFO (19 sites) and Nitrate (82 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
CAFO: CAFOs pose a different contamination profile than chemical sources.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Middleburg
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 Middleburg average
Your land is one point inside Middleburg
Everything above resolves to Middleburg as a whole — one PHZM band and one 28°F frost record, read across 565 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 Middleburg Average
Middleburg Average
- ●USDA Zones 6b, averaged across Middleburg
- ●One soil character for all of Middleburg
- ●Frost dates read at Middleburg's scale: Apr 8 to Oct 30
YOUR Parcel
- ✓Your exact zone, not Middleburg's 6b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Middleburg
Pull a site-specific report for your exact address in Middleburg, Pennsylvania — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Middleburg averages can't show:
We read public map data around Middleburg — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Middleburg average
How we know this about Middleburg
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 Middleburg’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 Middleburg
When does frost risk typically end in Middleburg?
The last hard freeze (28°F) in Middleburg typically lands around Apr 8, 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 29.
When is the first frost in Middleburg?
The first hard freeze (28°F) in Middleburg typically arrives around Oct 30, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Oct 16, so the watching starts about Sep 30 — about 205 days after the spring freeze cleared.
How long is the growing season in Middleburg?
Measured between 28°F hard freezes, Middleburg sees about 205 frost-free days — roughly Apr 8 through Oct 30, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 29 to Oct 16, about 170 days.
Is the soil safe to grow vegetables in Middleburg?
The federal record around Middleburg is a meaningful one — 291 documented sites, mostly Underground Storage Tanks entries (137), the nearest Underground Storage Tanks record under a tenth of a mile 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 Middleburg?
From about Sep 30 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 30 (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 30. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Middleburg's scale — its 6b band and its 205-day season. Your yard writes its own version of Middleburg'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 Middleburg’s own scale
7 of the readings below were taken at Middleburg's own scale — its own ~205-day season between 28°F freezes, the 565 acres it covers and 291 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Middleburg's own USDA hardiness band, zones 6bUSDA PHZM 2023
- Middleburg's own 28°F hard-freeze dates, about Apr 8 and Oct 30 and the ~205-day span between themNOAA 1991–2020 Climate Normals
- 291 documented contamination sites on the federal record near Middleburg, the closest Underground Storage Tanks record under a tenth of a mile out from the town centreFederal environmental registers
- Middleburg's boundary and the 565 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 6b and a ~205-day seasonGrowable Ground crop-matching engine
- The ecoregion at Middleburg's own centroid, the Ridge and ValleyUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Middleburglydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Middleburg's 565 acres read through its county's SSURGO summaryfrom Snyder County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Snyder 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 Snyder County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Middleburg's 565 acreswhy one lot differs from the next →
- Which side of Middleburg you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 565 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 Middleburg-wide figureread your own land →
More in Pennsylvania
Growing region
Nearby growing guides