Prairieville, Louisiana, sits in USDA hardiness zone 9a — a zone band wide enough that plant choice, not possibility, is the interesting question.
Well-matched crops include artichoke, fig, california poppy, and cabbage, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Even in Prairieville, 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 Prairieville 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 Prairieville — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Prairieville — the short answer
Prairieville, Louisiana: USDA zone 9a, about 307 days between hard freezes, across 14K acres of town.
- USDA zone
- 9a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 4
- Ascension Parish normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 8
- Ascension Parish normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~307
- Ascension Parish normal — NOAA 1991–2020, nearest to this town
- Town area
- 14K 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 Ascension Parish’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 9a is Prairieville's average, not your lot's — a low corner or a tree line moves it. Against Prairieville's 307-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Prairieville
Each reading below is measured for Prairieville itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsPrairieville runs about 307 days between hard freezes (read from Ascension Parish, the closest normal to Prairieville) — 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
MeasuredPrairieville 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 Prairieville is in
Prairieville sits in the Mississippi Valley Loess Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Prairieville's own centroid, and it is not what its county reads: Ascension Parish is mostly Mississippi Alluvial Plain. The wider page above you is answering a different question about different ground.
What Grows in Prairieville
Every plant below cleared Prairieville's own zone 9a and its 307-day season. Each card opens that plant's Louisiana profile. How we score.
Is it too late to plant in Prairieville?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Jan 7; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 4 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 8 — long-season crops need about 90 days of runway, quick greens only 30. In a climate this gentle, “too late” hardly applies — the question becomes which crops prefer the cooler months ahead.
What's on the federal record near Prairieville
Closest first, within ~10 miles of Prairieville. Listing isn't leaking, and distance isn't exposure.
- Oak Grove MarketUnderground Storage Tanks · 2500 ft
- PETITS PAINT & BODYBrownfields · 0.7 mi
- WINFREY LOGISTICS LLCBrownfields · 0.7 mi
- TRI BAR TRANS INCBrownfields · 0.7 mi
- HIGHTECH BLASTING & PAINTINGBrownfields · 0.8 mi
- TIGER HEIGHTS DRUM SITEBrownfields · 1.0 mi
- HARRIS AUTO REPAIRBrownfields · 1.1 mi
- An-273Nitrate · 1.1 mi
- RT #2352 Old JeffersonUnderground Storage Tanks · 1.1 mi
- OCHSNER CLINIC PRAIRIEVILLEBrownfields · 1.1 mi
- Lots 1 2 3 4 Sec 15 T8 R2EUnderground Storage Tanks · 1.1 mi
- SHERWIN WILLIAMS #707303Brownfields · 1.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Prairieville'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 Prairieville.
Sources Checked
within ~10 miles of Prairieville
Severity Distribution
within ~10 miles of Prairieville
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Prairieville, Brownfields runs higher than the national average — 936 sites within ~10 miles of Prairieville. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Brownfields: Brownfield sites are former commercial or industrial properties where legacy soil contamination (heavy metals, PAHs, petroleum compounds) may persist.
Check EPA brownfield remediation status — many sites have completed cleanup with institutional controls.
Check your specific parcel in Prairieville
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 Prairieville average
Your land is one point inside Prairieville
Everything above resolves to Prairieville as a whole — one PHZM band, read across 14K acres, with hard-freeze dates borrowed from Ascension Parish’s record because no 30-year normal resolves at this town’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 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 Prairieville Average
Prairieville Average
- ●USDA Zones 9a, averaged across Prairieville
- ●One soil character for all of Prairieville
- ●Frost dates read at Prairieville's scale: Feb 4 to Dec 8
YOUR Parcel
- ✓Your exact zone, not Prairieville's 9a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Prairieville
Pull a site-specific report for your exact address in Prairieville, Louisiana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Prairieville averages can't show:
We read public map data around Prairieville — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Prairieville average
How we know this about Prairieville
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 Ascension 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 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 Prairieville
When does frost risk typically end in Prairieville?
The last hard freeze (28°F) in Prairieville typically lands around Feb 4, 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 Feb 25.
When is the first frost in Prairieville?
The first hard freeze (28°F) in Prairieville typically arrives around Dec 8, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 24, so the watching starts about Nov 8 — about 307 days after the spring freeze cleared.
How long is the growing season in Prairieville?
Measured between 28°F hard freezes, Prairieville sees about 307 frost-free days — roughly Feb 4 through Dec 8, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Feb 25 to Nov 24, about 272 days.
Is the soil safe to grow vegetables in Prairieville?
The federal record around Prairieville is a meaningful one — 1,607 documented sites, mostly Brownfields entries (936), the nearest Underground Storage Tanks record about 0.5 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 Prairieville?
From about Nov 8 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 8 (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 8. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Prairieville's scale — its 9a band and its 307-day season. Your yard writes its own version of Prairieville'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 Prairieville’s own scale
5 of the readings below were taken at Prairieville's own scale — the 14,079 acres it covers and 1,607 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Prairieville's own USDA hardiness band, zones 9aUSDA PHZM 2023
- 1,607 documented contamination sites on the federal record near Prairieville, the closest Underground Storage Tanks record about 0.5 miles out from the town centreFederal environmental registers
- Prairieville's boundary and the 14,079 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 9a and a ~307-day seasonGrowable Ground crop-matching engine
- Prairieville sits in the Mississippi Valley Loess Plains — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Prairieville has no normal of its own, so its county's is the closest measured readfrom Ascension Parish
- Soil character — no town-scale survey exists, so Prairieville's 14,079 acres read through its county's SSURGO summaryfrom Ascension County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Ascension 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 Ascension County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Prairieville's 14,079 acreswhy one lot differs from the next →
- Which side of Prairieville you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 14,079 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.5 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 Prairieville-wide figureread your own land →
More in Louisiana
Wider growing context
What grows across LouisianaPrairieville sits outside our named growing regions, so Louisiana as a whole is its closest context here.
Nearby growing guides