Ponchatoula, Louisiana, sits in USDA hardiness zone 9a — a zone band wide enough that plant choice, not possibility, is the interesting question.
Reliable performers under these conditions include artichoke, fig, california poppy, and cabbage; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Ponchatoula, 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 Ponchatoula 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 Ponchatoula — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Ponchatoula — the short answer
Ponchatoula, Louisiana: USDA zone 9a, about 291 days between hard freezes, across 3K acres of city.
- USDA zone
- 9a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 15
- Tangipahoa Parish normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 3
- Tangipahoa Parish normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~291
- Tangipahoa Parish normal — NOAA 1991–2020, nearest to this town
- City area
- 3K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. No 30-year normal resolves at this town’s own centroid, so the hard-freeze dates are Tangipahoa Parish’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 9a is Ponchatoula's average, not your lot's — a low corner or a tree line moves it. Against Ponchatoula's 291-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Ponchatoula
Each reading below is measured for Ponchatoula itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsPonchatoula runs about 291 days between hard freezes (read from Tangipahoa Parish, the closest normal to Ponchatoula) — close to year-round growing.
Frost is rarely the limit here; winter plantings are as real as summer ones, and the harder question is which crops shrug off the summer heat.
Grow cool-season crops through the mild winter, and choose heat-tolerant varieties for the summer beds.
NOAA 1991–2020 Climate Normals
Winter hardiness
MeasuredPonchatoula sits in USDA hardiness zone 9a.
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 Ponchatoula is in
Ponchatoula sits in the Southern Coastal Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Ponchatoula's own centroid, and it is not what its county reads: Tangipahoa Parish is mostly Southeastern Plains. The wider page above you is answering a different question about different ground.
What Grows in Ponchatoula
Every plant below cleared Ponchatoula's own zone 9a and its 291-day season. Each card opens that plant's Louisiana profile. How we score.
Is it too late to plant in Ponchatoula?
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 Jan 18; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 15 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 3 — long-season crops need about 90 days of runway, quick greens only 30. With almost year-round growing weather, timing is about heat and rainfall more than frost — some bench is always in play.
What's on the federal record near Ponchatoula
Closest first, within ~10 miles of Ponchatoula. Listing isn't leaking, and distance isn't exposure.
- GATEWAY FORDBrownfields · 750 ft
- T B Harris LLCUnderground Storage Tanks · 800 ft
- Closed Gulf Service StationUnderground Storage Tanks · 800 ft
- Clifford G WebbUnderground Storage Tanks · 800 ft
- CVS PHARMACY #5294Brownfields · 1000 ft
- Louisiana CVS Pharmacy - Former Six FortuneUnderground Storage Tanks · 1000 ft
- Remember WhenUnderground Storage Tanks · 1000 ft
- Ballard & Son Service StationUnderground Storage Tanks · 1200 ft
- Ta-284Nitrate · 1300 ft
- Marties TransmissionsUnderground Storage Tanks · 1300 ft
- ALL TRANS MARINE INCBrownfields · 1300 ft
- Amar Car WashUnderground Storage Tanks · 1300 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Ponchatoula'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 Ponchatoula.
Sources Checked
within ~10 miles of Ponchatoula
Severity Distribution
within ~10 miles of Ponchatoula
Highest-Severity Sites
Know Before You Grow
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in Ponchatoula
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 Ponchatoula average
Your land is one point inside Ponchatoula
Everything above resolves to Ponchatoula as a whole — one PHZM band, read across 3K acres, with hard-freeze dates borrowed from Tangipahoa Parish’s record because no 30-year normal resolves at this city’s own centroid. 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 Ponchatoula Average
Ponchatoula Average
- ●USDA Zones 9a, averaged across Ponchatoula
- ●One soil character for all of Ponchatoula
- ●Frost dates read at Ponchatoula's scale: Feb 15 to Dec 3
YOUR Parcel
- ✓Your exact zone, not Ponchatoula's 9a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Ponchatoula
Pull a site-specific report for your exact address in Ponchatoula, Louisiana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Ponchatoula averages can't show:
We read public map data around Ponchatoula — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Ponchatoula average
How we know this about Ponchatoula
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 Tangipahoa Parish’s record, because none resolves here; 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 Ponchatoula
When does frost risk typically end in Ponchatoula?
The last hard freeze (28°F) in Ponchatoula typically lands around Feb 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 Mar 8.
When is the first frost in Ponchatoula?
The first hard freeze (28°F) in Ponchatoula typically arrives around Dec 3, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 19, so the watching starts about Nov 3 — about 291 days after the spring freeze cleared.
How long is the growing season in Ponchatoula?
Measured between 28°F hard freezes, Ponchatoula sees about 291 frost-free days — roughly Feb 15 through Dec 3, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 8 to Nov 19, about 256 days.
Is the soil safe to grow vegetables in Ponchatoula?
The federal record around Ponchatoula is a meaningful one — 662 documented sites, mostly Brownfields entries (275), the nearest Brownfields 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 Ponchatoula?
From about Nov 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 Dec 3 (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 Dec 3. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Ponchatoula's scale — its 9a band and its 291-day season. Your yard writes its own version of Ponchatoula'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 Ponchatoula’s own scale
5 of the readings below were taken at Ponchatoula's own scale — the 3,020 acres it covers and 662 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Ponchatoula's own USDA hardiness band, zones 9aUSDA PHZM 2023
- 662 documented contamination sites on the federal record near Ponchatoula, the closest Brownfields record about 0.1 miles out from the town centreFederal environmental registers
- Ponchatoula's boundary and the 3,020 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 9a and a ~291-day seasonGrowable Ground crop-matching engine
- Ponchatoula sits in the Southern Coastal Plain — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Ponchatoula has no normal of its own, so its county's is the closest measured readfrom Tangipahoa Parish
- Soil character — no town-scale survey exists, so Ponchatoula's 3,020 acres read through its county's SSURGO summaryfrom Tangipahoa County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Tangipahoa County
- The growing challenges every Louisiana grower plans around — written at state scale, so they stay on the state guidefrom Louisiana
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Tangipahoa County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Ponchatoula's 3,020 acreswhy one lot differs from the next →
- Which side of Ponchatoula you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 3,020 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields 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 Ponchatoula-wide figureread your own land →
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