Pierre Part, Louisiana, sits in USDA hardiness zone 9b — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
Expect okra, meyer lemon, california poppy, and artichoke to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Pierre Part, 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 Pierre Part 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 Pierre Part — soil, climate, flood, and parcel records. How we handle your address.
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Pierre Part — the short answer
Pierre Part, Louisiana: USDA zone 9b, about 318 days between hard freezes, across 2K acres of town.
- USDA zone
- 9b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Jan 27
- Assumption Parish normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 11
- Assumption Parish normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~318
- Assumption Parish normal — NOAA 1991–2020, nearest to this town
- Town area
- 2K 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 Assumption Parish’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 9b is Pierre Part's average, not your lot's — a low corner or a tree line moves it. Against Pierre Part's 318-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Pierre Part
Each reading below is measured for Pierre Part itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsPierre Part runs about 318 days between hard freezes (read from Assumption Parish, the closest normal to Pierre Part) — 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
MeasuredPierre Part sits in USDA hardiness zone 9b.
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 Pierre Part is in
Pierre Part sits in the Mississippi Alluvial Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Pierre Part's own centroid rather than borrowed from Assumption Parish.
What Grows in Pierre Part
Every plant below cleared Pierre Part's own zone 9b and its 318-day season. Each card opens that plant's Louisiana profile. How we score.
Is it too late to plant in Pierre Part?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Jan 1; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Jan 27 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 11 — 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 Pierre Part
Closest first, within ~10 miles of Pierre Part. Listing isn't leaking, and distance isn't exposure.
- Pierre Part Store IncUnderground Storage Tanks · 0.6 mi
- Lena's Quick StopUnderground Storage Tanks · 0.6 mi
- DOLLAR GENERAL 4288Brownfields · 0.6 mi
- BREAUX & DAIGLE MARINE INCBrownfields · 0.6 mi
- Breaux & Daigle Marine IncUnderground Storage Tanks · 0.6 mi
- Breaux's ChevronUnderground Storage Tanks · 0.7 mi
- PIERRE PART LAB & XRAY INCBrownfields · 0.7 mi
- Attakapas SupplyUnderground Storage Tanks · 0.8 mi
- Richards GroceryUnderground Storage Tanks · 0.8 mi
- Chedotal's GroceryUnderground Storage Tanks · 0.8 mi
- Circle K #6809Underground Storage Tanks · 0.8 mi
- STEVE KENT SERVICES LLCBrownfields · 1.2 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Pierre Part'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 Pierre Part.
Total Sites
74
within ~10 miles of Pierre Part
Risk Level
Moderate
Highest-severity
3 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Pierre Part
Severity Distribution
within ~10 miles of Pierre Part
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.
- •TRI facilities report what they release. Check the wind — downwind beds catch more of it.
Check your specific parcel in Pierre Part
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 Pierre Part average
Your land is one point inside Pierre Part
Everything above resolves to Pierre Part as a whole — one PHZM band, read across 2K acres, with hard-freeze dates borrowed from Assumption 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 Pierre Part Average
Pierre Part Average
- ●USDA Zones 9b, averaged across Pierre Part
- ●One soil character for all of Pierre Part
- ●Frost dates read at Pierre Part's scale: Jan 27 to Dec 11
YOUR Parcel
- ✓Your exact zone, not Pierre Part's 9b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Pierre Part
Pull a site-specific report for your exact address in Pierre Part, Louisiana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Pierre Part averages can't show:
We read public map data around Pierre Part — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Pierre Part average
How we know this about Pierre Part
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 Assumption 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 Pierre Part
When does frost risk typically end in Pierre Part?
The last hard freeze (28°F) in Pierre Part typically lands around Jan 27, 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 17.
When is the first frost in Pierre Part?
The first hard freeze (28°F) in Pierre Part typically arrives around Dec 11, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 27, so the watching starts about Nov 11 — about 318 days after the spring freeze cleared.
How long is the growing season in Pierre Part?
Measured between 28°F hard freezes, Pierre Part sees about 318 frost-free days — roughly Jan 27 through Dec 11, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Feb 17 to Nov 27, about 283 days.
Is the soil safe to grow vegetables in Pierre Part?
The federal record around Pierre Part shows 74 documented sites, mostly Underground Storage Tanks entries (37), the nearest Underground Storage Tanks record about 0.6 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 Pierre Part?
From about Nov 11 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 11 (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 11. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Pierre Part's scale — its 9b band and its 318-day season. Your yard writes its own version of Pierre Part'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 Pierre Part’s own scale
5 of the readings below were taken at Pierre Part's own scale — the 1,967 acres it covers and 74 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Pierre Part's own USDA hardiness band, zones 9bUSDA PHZM 2023
- 74 documented contamination sites on the federal record near Pierre Part, the closest Underground Storage Tanks record about 0.6 miles out from the town centreFederal environmental registers
- Pierre Part's boundary and the 1,967 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 9b and a ~318-day seasonGrowable Ground crop-matching engine
- The ecoregion at Pierre Part's own centroid, the Mississippi Alluvial PlainUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Pierre Part has no normal of its own, so its county's is the closest measured readfrom Assumption Parish
- Soil character — no town-scale survey exists, so Pierre Part's 1,967 acres read through its county's SSURGO summaryfrom Assumption County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Assumption 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 Assumption County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Pierre Part's 1,967 acreswhy one lot differs from the next →
- Which side of Pierre Part you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,967 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.6 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 Pierre Part-wide figureread your own land →
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