Sorrento, Louisiana, sits in USDA hardiness zone 9a — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Well-matched crops include artichoke, fig, california poppy, and cabbage, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Even in Sorrento, 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 Sorrento 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 Sorrento — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Sorrento — the short answer
Sorrento, Louisiana: USDA zone 9a, about 307 days between hard freezes, across 2K acres of town.
- USDA zone
- 9a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 4
- Ascension Parish normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 8
- Ascension Parish normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~307
- Ascension 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 Ascension Parish’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 9a is Sorrento's average, not your lot's — a low corner or a tree line moves it. Against Sorrento's 307-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Sorrento
Each reading below is measured for Sorrento itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsSorrento runs about 307 days between hard freezes (read from Ascension Parish, the closest normal to Sorrento) — 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
MeasuredSorrento 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 Sorrento is in
Sorrento sits in the Mississippi Valley Loess Plains — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Sorrento's own centroid, and it is not what its county reads: Ascension Parish is mostly Mississippi Alluvial Plain. The wider page above you is answering a different question about different ground.
What Grows in Sorrento
Every plant below cleared Sorrento's own zone 9a and its 307-day season. Each card opens that plant's Louisiana profile. How we score.
Is it too late to plant in Sorrento?
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 7; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 4 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 8 — 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 Sorrento
Closest first, within ~10 miles of Sorrento. Listing isn't leaking, and distance isn't exposure.
- Troy's Quik PicUnderground Storage Tanks · 1700 ft
- Nolan Veillon PropertyUnderground Storage Tanks · 1800 ft
- A BEARS COLLISION CNTRBrownfields · 2200 ft
- An-258ANitrate · 0.6 mi
- An-258BNitrate · 0.6 mi
- EATEL Sorrento Central OfficeUnderground Storage Tanks · 0.7 mi
- RIVER PARISHES COMM COLLEGEBrownfields · 0.7 mi
- An-78Nitrate · 0.8 mi
- Bayou Conway Super StopUnderground Storage Tanks · 0.8 mi
- Gaubert Food Mart Inc - Go-Bear Food Mart #24Underground Storage Tanks · 0.8 mi
- Sorrento Lumber IncUnderground Storage Tanks · 0.8 mi
- Singh & Bambah LLCUnderground Storage Tanks · 0.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Sorrento'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 Sorrento.
Sources Checked
within ~10 miles of Sorrento
Severity Distribution
within ~10 miles of Sorrento
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Sorrento, Brownfields runs higher than the national average — 426 sites within ~10 miles of Sorrento. Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
Brownfields: Brownfield sites are former commercial or industrial properties where legacy soil contamination (heavy metals, PAHs, petroleum compounds) may persist.
Check EPA brownfield remediation status — many sites have completed cleanup with institutional controls.
Check your specific parcel in Sorrento
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 Sorrento average
Your land is one point inside Sorrento
Everything above resolves to Sorrento as a whole — one PHZM band, read across 2K acres, with hard-freeze dates borrowed from Ascension 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 Sorrento Average
Sorrento Average
- ●USDA Zones 9a, averaged across Sorrento
- ●One soil character for all of Sorrento
- ●Frost dates read at Sorrento's scale: Feb 4 to Dec 8
YOUR Parcel
- ✓Your exact zone, not Sorrento's 9a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Sorrento
Pull a site-specific report for your exact address in Sorrento, Louisiana — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Sorrento averages can't show:
We read public map data around Sorrento — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Sorrento average
How we know this about Sorrento
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 Ascension 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 Sorrento
When does frost risk typically end in Sorrento?
The last hard freeze (28°F) in Sorrento typically lands around Feb 4, 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 25.
When is the first frost in Sorrento?
The first hard freeze (28°F) in Sorrento typically arrives around Dec 8, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 24, so the watching starts about Nov 8 — about 307 days after the spring freeze cleared.
How long is the growing season in Sorrento?
Measured between 28°F hard freezes, Sorrento sees about 307 frost-free days — roughly Feb 4 through Dec 8, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Feb 25 to Nov 24, about 272 days.
Is the soil safe to grow vegetables in Sorrento?
The federal record around Sorrento runs heavier than most — 860 documented sites, mostly Brownfields entries (426), the nearest Underground Storage Tanks record about 0.3 miles out — so test the soil before planting food in the ground, and raised beds with clean imported soil grow well in the meantime. Even here, proximity to a documented site is information, not a diagnosis of any one yard; the contamination map shows exactly what's recorded and where.
How do I protect my plants from frost in Sorrento?
From about Nov 8 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 8 (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 8. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Sorrento's scale — its 9a band and its 307-day season. Your yard writes its own version of Sorrento'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 Sorrento’s own scale
5 of the readings below were taken at Sorrento's own scale — the 2,325 acres it covers and 860 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Sorrento's own USDA hardiness band, zones 9aUSDA PHZM 2023
- 860 documented contamination sites on the federal record near Sorrento, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- Sorrento's boundary and the 2,325 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 9a and a ~307-day seasonGrowable Ground crop-matching engine
- Sorrento sits in the Mississippi Valley Loess Plains — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Sorrento has no normal of its own, so its county's is the closest measured readfrom Ascension Parish
- Soil character — no town-scale survey exists, so Sorrento's 2,325 acres read through its county's SSURGO summaryfrom Ascension County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Ascension 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 Ascension County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Sorrento's 2,325 acreswhy one lot differs from the next →
- Which side of Sorrento you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 2,325 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.3 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 Sorrento-wide figureread your own land →
More in Louisiana
Wider growing context
What grows across LouisianaSorrento sits outside our named growing regions, so Louisiana as a whole is its closest context here.
Nearby growing guides