Haynesville, Louisiana, sits in USDA hardiness zone 8b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Expect cabbage, fig, california poppy, and collard greens to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Haynesville, 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 Haynesville 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 Haynesville — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Haynesville — the short answer
Haynesville, Louisiana: USDA zone 8b, about 265 days between hard freezes, across 3K acres of town.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 2
- Claiborne Parish normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Nov 22
- Claiborne Parish normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~265
- Claiborne Parish normal — NOAA 1991–2020, nearest to this town
- Town 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 Claiborne Parish’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8b is Haynesville's average, not your lot's — a low corner or a tree line moves it. Against Haynesville's 265-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Haynesville
Each reading below is measured for Haynesville itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsHaynesville runs about 265 days between hard freezes (read from Claiborne Parish, the closest normal to Haynesville) — 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
MeasuredHaynesville sits in USDA hardiness zone 8b.
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 Haynesville is in
Haynesville sits in the South Central Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Haynesville's own centroid rather than borrowed from Claiborne Parish.
What Grows in Haynesville
Every plant below cleared Haynesville's own zone 8b and its 265-day season. Each card opens that plant's Louisiana profile. How we score.
Is it too late to plant in Haynesville?
Rarely: the season closes in stages, not all at once, and each stage has its crops. Cool-season crops can go in from around Feb 2; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 2 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 22 — 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 Haynesville
Closest first, within ~10 miles of Haynesville. Listing isn't leaking, and distance isn't exposure.
- HYCO CONST & TRKNGBrownfields · 750 ft
- HANKS INSPECTION STATIONBrownfields · 900 ft
- Hill Oil Co LLC - HaynesvilleUnderground Storage Tanks · 1100 ft
- Dixie Mart #9Underground Storage Tanks · 1300 ft
- Blacks Exxon ServicenterUnderground Storage Tanks · 1500 ft
- Imco ServicesUnderground Storage Tanks · 1600 ft
- L E DanielUnderground Storage Tanks · 1600 ft
- Country StoreUnderground Storage Tanks · 1600 ft
- Moss IncUnderground Storage Tanks · 1600 ft
- Chris Full ServiceUnderground Storage Tanks · 1600 ft
- BellSouth Telecommunications - Hyvllama - K4543Underground Storage Tanks · 2200 ft
- Millers Gulf ServiceUnderground Storage Tanks · 2300 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Haynesville'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 Haynesville.
Total Sites
110
within ~10 miles of Haynesville
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Haynesville
Severity Distribution
within ~10 miles of Haynesville
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Haynesville, Nitrate runs higher than the national average — 44 sites within ~10 miles of Haynesville. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
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 Haynesville
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 Haynesville average
Your land is one point inside Haynesville
Everything above resolves to Haynesville as a whole — one PHZM band, read across 3K acres, with hard-freeze dates borrowed from Claiborne 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 Haynesville Average
Haynesville Average
- ●USDA Zones 8b, averaged across Haynesville
- ●One soil character for all of Haynesville
- ●Frost dates read at Haynesville's scale: Mar 2 to Nov 22
YOUR Parcel
- ✓Your exact zone, not Haynesville's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Haynesville
Pull a site-specific report for your exact address in Haynesville, Louisiana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Haynesville averages can't show:
We read public map data around Haynesville — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Haynesville average
How we know this about Haynesville
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 Claiborne 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 Haynesville
When does frost risk typically end in Haynesville?
The last hard freeze (28°F) in Haynesville typically lands around Mar 2, 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 23.
When is the first frost in Haynesville?
The first hard freeze (28°F) in Haynesville typically arrives around Nov 22, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 8, so the watching starts about Oct 23 — about 265 days after the spring freeze cleared.
How long is the growing season in Haynesville?
Measured between 28°F hard freezes, Haynesville sees about 265 frost-free days — roughly Mar 2 through Nov 22, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 23 to Nov 8, about 230 days.
Is the soil safe to grow vegetables in Haynesville?
The federal record around Haynesville is a meaningful one — 110 documented sites, mostly Underground Storage Tanks entries (47), 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 Haynesville?
From about Oct 23 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 22 (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 22. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Haynesville's scale — its 8b band and its 265-day season. Your yard writes its own version of Haynesville'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 Haynesville’s own scale
5 of the readings below were taken at Haynesville's own scale — the 3,090 acres it covers and 110 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Haynesville's own USDA hardiness band, zones 8bUSDA PHZM 2023
- 110 documented contamination sites on the federal record near Haynesville, the closest Brownfields record about 0.1 miles out from the town centreFederal environmental registers
- Haynesville's boundary and the 3,090 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~265-day seasonGrowable Ground crop-matching engine
- The ecoregion at Haynesville's own centroid, the South Central PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Haynesville has no normal of its own, so its county's is the closest measured readfrom Claiborne Parish
- Soil character — no town-scale survey exists, so Haynesville's 3,090 acres read through its county's SSURGO summaryfrom Claiborne County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Claiborne 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 Claiborne County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Haynesville's 3,090 acreswhy one lot differs from the next →
- Which side of Haynesville you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 3,090 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 Haynesville-wide figureread your own land →
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