Roseland, Louisiana, sits in USDA hardiness zone 9a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
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 Roseland, 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 Roseland 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 Roseland — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Roseland — the short answer
Roseland, Louisiana: USDA zone 9a, about 291 days between hard freezes, across 1K acres of town.
- 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
- Town area
- 1K 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 Roseland's average, not your lot's — a low corner or a tree line moves it. Against Roseland's 291-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Roseland
Each reading below is measured for Roseland itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsRoseland runs about 291 days between hard freezes (read from Tangipahoa Parish, the closest normal to Roseland) — 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
MeasuredRoseland 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 Roseland is in
Roseland sits in the Southeastern Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Roseland's own centroid rather than borrowed from Tangipahoa Parish.
What Grows in Roseland
Every plant below cleared Roseland'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 Roseland?
Almost never — the real question is what to plant next. 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 Roseland
Closest first, within ~10 miles of Roseland. Listing isn't leaking, and distance isn't exposure.
- Ta-260Nitrate · 300 ft
- DOLLAR GENERAL #5874Brownfields · 400 ft
- PRITCHETT REPAIR SVCBrownfields · 650 ft
- Sky's PantryUnderground Storage Tanks · 650 ft
- RITE WAY BODY SHOPBrownfields · 900 ft
- Roseland ShopUnderground Storage Tanks · 1600 ft
- Roseland WoodyardUnderground Storage Tanks · 1700 ft
- CMS CHEMICALS LLCToxics Release Inventory · 1900 ft
- Amite CitgoUnderground Storage Tanks · 2100 ft
- AMERICAN SPORTWORKSBrownfields · 2400 ft
- L&M Self ServeUnderground Storage Tanks · 0.8 mi
- Frohn Bros GarageUnderground Storage Tanks · 0.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Roseland'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 Roseland.
Total Sites
271
within ~10 miles of Roseland
Risk Level
Elevated
Highest-severity
11 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Roseland
Severity Distribution
within ~10 miles of Roseland
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Roseland, two things run higher than the national average within ~10 miles of Roseland — CAFO (4 sites) and PFAS (3 sites). That's not a problem with your land — it's information about it.
CAFO: CAFOs pose a different contamination profile than chemical sources.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Wash all produce consumed raw thoroughly, especially leafy greens grown near CAFOs.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check your specific parcel in Roseland
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 Roseland average
Your land is one point inside Roseland
Everything above resolves to Roseland as a whole — one PHZM band, read across 1K acres, with hard-freeze dates borrowed from Tangipahoa 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 Roseland Average
Roseland Average
- ●USDA Zones 9a, averaged across Roseland
- ●One soil character for all of Roseland
- ●Frost dates read at Roseland's scale: Feb 15 to Dec 3
YOUR Parcel
- ✓Your exact zone, not Roseland's 9a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Roseland
Pull a site-specific report for your exact address in Roseland, Louisiana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Roseland averages can't show:
We read public map data around Roseland — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Roseland average
How we know this about Roseland
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 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 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 Roseland
When does frost risk typically end in Roseland?
The last hard freeze (28°F) in Roseland 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 Roseland?
The first hard freeze (28°F) in Roseland 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 Roseland?
Measured between 28°F hard freezes, Roseland 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 Roseland?
The federal record around Roseland is a meaningful one — 271 documented sites, mostly Underground Storage Tanks entries (116), the nearest Nitrate record under a tenth of a mile 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 Roseland?
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 Roseland's scale — its 9a band and its 291-day season. Your yard writes its own version of Roseland'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 Roseland’s own scale
5 of the readings below were taken at Roseland's own scale — the 1,329 acres it covers and 271 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Roseland's own USDA hardiness band, zones 9aUSDA PHZM 2023
- 271 documented contamination sites on the federal record near Roseland, the closest Nitrate record under a tenth of a mile out from the town centreFederal environmental registers
- Roseland's boundary and the 1,329 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 9a and a ~291-day seasonGrowable Ground crop-matching engine
- The ecoregion at Roseland's own centroid, the Southeastern PlainsUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Roseland 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 Roseland's 1,329 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 Roseland's 1,329 acreswhy one lot differs from the next →
- Which side of Roseland you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,329 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 Roseland-wide figureread your own land →
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