Alexandria, Pennsylvania, sits in USDA hardiness zone 7a — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
On paper, cabbage, pawpaw, california poppy, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Alexandria, 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 Alexandria 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 Alexandria — soil, climate, flood, and parcel records. How we handle your address.
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Alexandria — the short answer
Alexandria, Pennsylvania: USDA zone 7a, about 200 days between hard freezes, across 73 acres of town.
- USDA zone
- 7a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Apr 13
- 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
- ~200
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Town area
- 73 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 Alexandria's average, not your lot's — a low corner or a tree line moves it. Against Alexandria's 200-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Alexandria
Each reading below is measured for Alexandria itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredAlexandria runs about 200 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
MeasuredAlexandria 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 Alexandria is in
Alexandria sits in the Ridge and Valley — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Alexandria's own centroid rather than borrowed from Huntingdon County.
What Grows in Alexandria
Every plant below cleared Alexandria's own zone 7a and its 200-day season. Each card opens that plant's Pennsylvania profile. How we score.
Is it too late to plant in Alexandria?
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 16; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Apr 13 (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 Alexandria
Spotted lanternfly documented 2 miles from Alexandria, first recorded 2019. What to watch for.
What's on the federal record near Alexandria
Closest first, within ~10 miles of Alexandria. Listing isn't leaking, and distance isn't exposure.
- HICKES CONSTUnderground Storage Tanks · 650 ft
- MEAD SCH & OFC PRODUnderground Storage Tanks · 650 ft
- ACCO BRANDS USABrownfields · 0.5 mi
- MARTIN GEN STORE 226Underground Storage Tanks · 0.5 mi
- MARTIN OIL CO MINIT MARTBrownfields · 0.8 mi
- AEPUnderground Storage Tanks · 1.0 mi
- ALEXANDRIA MINI MART 226Underground Storage Tanks · 1.0 mi
- ALEXANDRIA WOOD PRODUnderground Storage Tanks · 1.0 mi
- JACK WILSON SVC STAUnderground Storage Tanks · 1.0 mi
- COUNTRY PARTNERSHIPUnderground Storage Tanks · 1.0 mi
- WINGERT FARMS INCCAFO · 1.0 mi
- JUNIATA VALLEY SCH DISTUnderground Storage Tanks · 1.0 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Alexandria'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 Alexandria.
Total Sites
222
within ~10 miles of Alexandria
Risk Level
Elevated
Highest-severity
3 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Alexandria
Severity Distribution
within ~10 miles of Alexandria
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Alexandria, two things run higher than the national average within ~10 miles of Alexandria — CAFO (6 sites) and Mining (18 sites). That's not a problem with your land — it's information about it.
CAFO: CAFOs pose a different contamination profile than chemical sources.
Mining: Mining sites — both historic and active — can leach heavy metals (arsenic, lead, cadmium, mercury) into soil and water for centuries after operations cease.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Test soil for heavy metals (lead, arsenic, cadmium, mercury) — this is essential near any mining site.
Check your specific parcel in Alexandria
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 Alexandria average
Your land is one point inside Alexandria
Everything above resolves to Alexandria as a whole — one PHZM band and one 28°F frost record, read across 73 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 Alexandria Average
Alexandria Average
- ●USDA Zones 7a, averaged across Alexandria
- ●One soil character for all of Alexandria
- ●Frost dates read at Alexandria's scale: Apr 13 to Oct 30
YOUR Parcel
- ✓Your exact zone, not Alexandria's 7a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Alexandria
Pull a site-specific report for your exact address in Alexandria, Pennsylvania — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Alexandria averages can't show:
We read public map data around Alexandria — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Alexandria average
How we know this about Alexandria
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 Alexandria’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 Alexandria
When does frost risk typically end in Alexandria?
The last hard freeze (28°F) in Alexandria typically lands around Apr 13, 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 4.
When is the first frost in Alexandria?
The first hard freeze (28°F) in Alexandria 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 200 days after the spring freeze cleared.
How long is the growing season in Alexandria?
Measured between 28°F hard freezes, Alexandria sees about 200 frost-free days — roughly Apr 13 through Oct 30, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer May 4 to Oct 16, about 165 days.
Is the soil safe to grow vegetables in Alexandria?
The federal record around Alexandria is a meaningful one — 222 documented sites, mostly Underground Storage Tanks entries (81), 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 Alexandria?
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 Alexandria's scale — its 7a band and its 200-day season. Your yard writes its own version of Alexandria'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 Alexandria’s own scale
7 of the readings below were taken at Alexandria's own scale — its own ~200-day season between 28°F freezes, the 73 acres it covers and 222 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Alexandria's own USDA hardiness band, zones 7aUSDA PHZM 2023
- Alexandria's own 28°F hard-freeze dates, about Apr 13 and Oct 30 and the ~200-day span between themNOAA 1991–2020 Climate Normals
- 222 documented contamination sites on the federal record near Alexandria, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
- Alexandria's boundary and the 73 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 7a and a ~200-day seasonGrowable Ground crop-matching engine
- The ecoregion at Alexandria's own centroid, the Ridge and ValleyUS EPA Level III Ecoregions
- A documented spotted-lanternfly record within reach of Alexandrialydemapr (De Bona & Helmus), 10 km survey lattice
Inherited from a wider read
- Soil character — no town-scale survey exists, so Alexandria's 73 acres read through its county's SSURGO summaryfrom Huntingdon County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Huntingdon 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 Huntingdon County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Alexandria's 73 acreswhy one lot differs from the next →
- Which side of Alexandria you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 73 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 Alexandria-wide figureread your own land →
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