Greensburg, Louisiana, sits in USDA hardiness zone 9a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Crops well matched to these conditions include artichoke, fig, california poppy, and cabbage — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in Greensburg, 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 Greensburg 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 Greensburg — soil, climate, flood, and parcel records. How we handle your address.
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Greensburg — the short answer
Greensburg, Louisiana: USDA zone 9a, about 285 days between hard freezes, across 2K acres of town.
- USDA zone
- 9a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 17
- St. Helena Parish normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Nov 29
- St. Helena Parish normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~285
- St. Helena 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 St. Helena Parish’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 9a is Greensburg's average, not your lot's — a low corner or a tree line moves it. Against Greensburg's 285-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Greensburg
Each reading below is measured for Greensburg itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsGreensburg runs about 285 days between hard freezes (read from St. Helena Parish, the closest normal to Greensburg) — 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
MeasuredGreensburg 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 Greensburg is in
Greensburg sits in the Southeastern Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Greensburg's own centroid rather than borrowed from St. Helena Parish.
What Grows in Greensburg
Every plant below cleared Greensburg's own zone 9a and its 285-day season. Each card opens that plant's Louisiana profile. How we score.
Is it too late to plant in Greensburg?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Jan 20; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 17 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 29 — 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 Greensburg
Closest first, within ~10 miles of Greensburg. Listing isn't leaking, and distance isn't exposure.
- SH-5Nitrate · 250 ft
- Hank's Mobil Deli LLCUnderground Storage Tanks · 400 ft
- M&M Community GroceryUnderground Storage Tanks · 850 ft
- Lloyd Hagan Gen MdseUnderground Storage Tanks · 850 ft
- Pipeline GroceryUnderground Storage Tanks · 850 ft
- SH-2Nitrate · 900 ft
- SH-35Nitrate · 1000 ft
- LADOTD - Greensburg Maintenance UnitUnderground Storage Tanks · 1100 ft
- SH-36Nitrate · 1100 ft
- Greensburg SeafoodUnderground Storage Tanks · 1300 ft
- NORTHSHORE TECH COMM COLLEGE FLORIDA PARISHESBrownfields · 1800 ft
- ST HELENA PARISH HOSPITALBrownfields · 2200 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Greensburg'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 Greensburg.
Total Sites
101
within ~10 miles of Greensburg
Risk Level
Moderate
Highest-severity
3 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Greensburg
Severity Distribution
within ~10 miles of Greensburg
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Greensburg, Nitrate runs higher than the national average — 38 sites within ~10 miles of Greensburg. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Greensburg
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 Greensburg average
Your land is one point inside Greensburg
Everything above resolves to Greensburg as a whole — one PHZM band, read across 2K acres, with hard-freeze dates borrowed from St. Helena 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 Greensburg Average
Greensburg Average
- ●USDA Zones 9a, averaged across Greensburg
- ●One soil character for all of Greensburg
- ●Frost dates read at Greensburg's scale: Feb 17 to Nov 29
YOUR Parcel
- ✓Your exact zone, not Greensburg's 9a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Greensburg
Pull a site-specific report for your exact address in Greensburg, Louisiana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Greensburg averages can't show:
We read public map data around Greensburg — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Greensburg average
How we know this about Greensburg
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 St. Helena 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 Greensburg
When does frost risk typically end in Greensburg?
The last hard freeze (28°F) in Greensburg typically lands around Feb 17, 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 10.
When is the first frost in Greensburg?
The first hard freeze (28°F) in Greensburg typically arrives around Nov 29, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 15, so the watching starts about Oct 30 — about 285 days after the spring freeze cleared.
How long is the growing season in Greensburg?
Measured between 28°F hard freezes, Greensburg sees about 285 frost-free days — roughly Feb 17 through Nov 29, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 10 to Nov 15, about 250 days.
Is the soil safe to grow vegetables in Greensburg?
The federal record around Greensburg shows 101 documented sites, mostly Underground Storage Tanks entries (41), the nearest Nitrate record under a tenth of a mile 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 Greensburg?
From about Oct 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 Nov 29 (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 Nov 29. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Greensburg's scale — its 9a band and its 285-day season. Your yard writes its own version of Greensburg'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 Greensburg’s own scale
5 of the readings below were taken at Greensburg's own scale — the 1,612 acres it covers and 101 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Greensburg's own USDA hardiness band, zones 9aUSDA PHZM 2023
- 101 documented contamination sites on the federal record near Greensburg, the closest Nitrate record under a tenth of a mile out from the town centreFederal environmental registers
- Greensburg's boundary and the 1,612 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 9a and a ~285-day seasonGrowable Ground crop-matching engine
- The ecoregion at Greensburg's own centroid, the Southeastern PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Greensburg has no normal of its own, so its county's is the closest measured readfrom St. Helena Parish
- Soil character — no town-scale survey exists, so Greensburg's 1,612 acres read through its county's SSURGO summaryfrom St. Helena County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom St. Helena 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 St. Helena County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Greensburg's 1,612 acreswhy one lot differs from the next →
- Which side of Greensburg you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,612 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Nitrate 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 Greensburg-wide figureread your own land →
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