Eden Isle, Louisiana, sits in USDA hardiness zone 9b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
These conditions suit okra, satsuma orange, live oak, and pecan — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
Even in Eden Isle, 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 Eden Isle 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 Eden Isle — soil, climate, flood, and parcel records. How we handle your address.
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Eden Isle — the short answer
Eden Isle, Louisiana: USDA zone 9b, about 300 days between hard freezes, across 2K acres of town.
- USDA zone
- 9b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 8
- St. Tammany Parish normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 5
- St. Tammany Parish normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~300
- St. Tammany 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. Tammany Parish’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 9b is Eden Isle's average, not your lot's — a low corner or a tree line moves it. Against Eden Isle's 300-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Eden Isle
Each reading below is measured for Eden Isle itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsEden Isle runs about 300 days between hard freezes (read from St. Tammany Parish, the closest normal to Eden Isle) — 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
MeasuredEden Isle 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 Eden Isle is in
Eden Isle sits in the Mississippi Alluvial Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Eden Isle's own centroid, and it is not what its county reads: St. Tammany Parish is mostly Southern Coastal Plain. The wider page above you is answering a different question about different ground.
What Grows in Eden Isle
Plants matched to Eden Isle's USDA zones 9b, ordered by how much hardiness margin each has here — the ones with room to spare at both ends of this town's band lead. Each links to its full growing profile.
Is it too late to plant in Eden Isle?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Jan 11; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 8 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 5 — long-season crops need about 90 days of runway, quick greens only 30. Here the calendar nearly circles: cool-season crops take the winter shift, and the next window is always close.
What's on the federal record near Eden Isle
Closest first, within ~10 miles of Eden Isle. Listing isn't leaking, and distance isn't exposure.
- REDLINE PERFORMANCE MARINEBrownfields · 750 ft
- Circle K #6816Underground Storage Tanks · 2300 ft
- JH RICH CO INCBrownfields · 2400 ft
- Help U GoUnderground Storage Tanks · 0.6 mi
- LAKE PONTCHARTRAIN BRIDGE REHAB PROJECT- SLIDELL LABrownfields · 0.6 mi
- Auto Engines SolutionsUnderground Storage Tanks · 0.6 mi
- MASTER TECH INCBrownfields · 0.7 mi
- CHEVRON SS 176614Brownfields · 0.8 mi
- ExxonMobil Oil Corp #51271Underground Storage Tanks · 0.8 mi
- The DockUnderground Storage Tanks · 0.9 mi
- ST-758Nitrate · 0.9 mi
- Alabama Great Southern RailwayUnderground Storage Tanks · 0.9 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Eden Isle'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 Eden Isle.
Sources Checked
within ~10 miles of Eden Isle
Severity Distribution
within ~10 miles of Eden Isle
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Eden Isle, two things run higher than the national average within ~10 miles of Eden Isle — PFAS (7 sites) and Brownfields (348 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Brownfields: Brownfield sites are former commercial or industrial properties where legacy soil contamination (heavy metals, PAHs, petroleum compounds) may persist.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check EPA brownfield remediation status — many sites have completed cleanup with institutional controls.
Check your specific parcel in Eden Isle
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 Eden Isle average
Your land is one point inside Eden Isle
Everything above resolves to Eden Isle as a whole — one PHZM band, read across 2K acres, with hard-freeze dates borrowed from St. Tammany 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 Eden Isle Average
Eden Isle Average
- ●USDA Zones 9b, averaged across Eden Isle
- ●One soil character for all of Eden Isle
- ●Frost dates read at Eden Isle's scale: Feb 8 to Dec 5
YOUR Parcel
- ✓Your exact zone, not Eden Isle's 9b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Eden Isle
Pull a site-specific report for your exact address in Eden Isle, Louisiana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Eden Isle averages can't show:
We read public map data around Eden Isle — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Eden Isle average
How we know this about Eden Isle
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. Tammany 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 Eden Isle
When does frost risk typically end in Eden Isle?
The last hard freeze (28°F) in Eden Isle typically lands around Feb 8, 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 1.
When is the first frost in Eden Isle?
The first hard freeze (28°F) in Eden Isle typically arrives around Dec 5, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 21, so the watching starts about Nov 5 — about 300 days after the spring freeze cleared.
How long is the growing season in Eden Isle?
Measured between 28°F hard freezes, Eden Isle sees about 300 frost-free days — roughly Feb 8 through Dec 5, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 1 to Nov 21, about 265 days.
Is the soil safe to grow vegetables in Eden Isle?
The federal record around Eden Isle is a meaningful one — 610 documented sites, mostly Brownfields entries (348), 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 Eden Isle?
From about Nov 5 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 5 (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 5. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Eden Isle's scale — its 9b band and its 300-day season. Your yard writes its own version of Eden Isle'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 Eden Isle’s own scale
4 of the readings below were taken at Eden Isle's own scale — the 1,947 acres it covers and 610 documented sites around it; 6 are borrowed from a wider read, named and linked below.
Measured here
- Eden Isle's own USDA hardiness band, zones 9bUSDA PHZM 2023
- 610 documented contamination sites on the federal record near Eden Isle, the closest Brownfields record about 0.1 miles out from the town centreFederal environmental registers
- Eden Isle's boundary and the 1,947 acres inside itUS Census TIGER/Line 2025
- Eden Isle sits in the Mississippi Alluvial Plain — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Eden Isle has no normal of its own, so its county's is the closest measured readfrom St. Tammany Parish
- Soil character — no town-scale survey exists, so Eden Isle's 1,947 acres read through its county's SSURGO summaryfrom St. Tammany County
- The candidate plant list — Louisiana's curated set, filtered to this zone band and re-ordered by how much margin each has herefrom Louisiana
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom St. Tammany 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. Tammany County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Eden Isle's 1,947 acreswhy one lot differs from the next →
- Which side of Eden Isle you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,947 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 Eden Isle-wide figureread your own land →
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