The Southwest Florida (Naples–Fort Myers–Sarasota) spans USDA hardiness zones 9b-10b — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
Florida's lower Gulf coast — a near-frost-free subtropical corridor (USDA zone 10a–10b along the shore, dropping to 9b in the DeSoto interior) where mangrove shorelines, sandy and marl soils, and hurricane exposure shape what grows. Year-round warm-season vegetables and mainland tropical fruit thrive here on a Gulf-side footprint distinct from both the cooler Central Florida interior and the Atlantic shore at the same latitude. These conditions suit tomato, sweet potato, jalapeno, and mango — a starting list any specific site will trim or extend with its own soil, sun, and drainage.
The Southwest Florida (Naples–Fort Myers–Sarasota) spans Florida.
Your yard isn't all of the Southwest Florida (Naples–Fort Myers–Sarasota).
The Southwest Florida (Naples–Fort Myers–Sarasota) spans USDA zones 9b-10b, but your parcel sits in exactly one — and slope, tree cover, and low spots nudge it further. 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 Southwest Florida (Naples–Fort Myers–Sarasota) — soil, climate, flood, and parcel records. How we handle your address.
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The Southwest Florida (Naples–Fort Myers–Sarasota) — the short answer
The Southwest Florida (Naples–Fort Myers–Sarasota): USDA zones 9b-10b, 329–365 frost-free days, in Florida.
- USDA zones
- 9b-10b
- USDA PHZM 2023, aggregated over the footprint
- Frost-free season
- 329–365 days
- NOAA Regional Climate Centers ACIS, 1991–2020
- Counties
- 6
- US Census TIGER/Line 2025
- Region type
- County cluster
- Growable Ground growing-region registry
Region boundary: Growable Ground growing-region registry — curated county clusters, EPA Level III ecoregions, and town clusters drawn finer than any county. Where a region publishes no measured season, no season figure is shown.
Hardiness Zone Range
What Grows in the Southwest Florida (Naples–Fort Myers–Sarasota)
Plants matched to the Southwest Florida (Naples–Fort Myers–Sarasota)'s USDA zones 9b-10b, ordered by how much hardiness margin each has across the region — the ones with room to spare at both ends of this band lead. Each links to its full growing profile.
Native Plants of the Southwest Florida (Naples–Fort Myers–Sarasota)
Plants the USDA PLANTS Database documents as native and present in this region’s state, kept only where the published hardiness range meets the Southwest Florida (Naples–Fort Myers–Sarasota)’s USDA zones 9b-10b — closest range match first. Presence is recorded by state, so a plant can be documented across the state and still be scarce in your corner of the region.
The ground across the Southwest Florida (Naples–Fort Myers–Sarasota)
The USDA soil survey maps this ground county by county. These are those records weighted by land area across six member counties — this region’s own profile, not a state figure.
The ground is predominantly Alfisols, at 40% of mapped acres, followed by Spodosols (31%), Entisols (14%) and Mollisols (7%). Six soil orders appear somewhere inside the footprint, which is the honest reason a regional soil answer only goes so far. The most extensive named soils are Immokalee, Cypress Lake, and Pineda.
58% of those acres are poorly drained, and another 26% very poorly drained, 4% somewhat poorly drained. Topsoil pH runs 4.8–6.3 between the lowest and the highest county on record.
Soil order
Alfisols
Drainage
Poorly drained
Topsoil pH
4.8–6.3
Hydric soils
59%
Soil changes across a driveway, so which of these your own ground sits on is a parcel question rather than a regional one. Collier County holds the most wetland ground here, at 76% — soil types explained.
USDA NRCS SSURGO via Soil Data Access
What this means for growing in the Southwest Florida (Naples–Fort Myers–Sarasota)
The soil survey reads this ground county by county, and the readings above are those records summed across the Southwest Florida (Naples–Fort Myers–Sarasota). Here is what they mean for a garden here — and the move an experienced grower makes about each one.
Drainage
From county records58% of the mapped acres across the Southwest Florida (Naples–Fort Myers–Sarasota) are poorly drained — ground that sheds water slowly. That is area-weighted across all six of its mapped counties.
Beds can stay saturated for days after heavy rain, and the roots of most vegetables, berries, and fruit trees suffocate or rot in soil that never drains.
Raised beds or mounded rows lift roots above the wet zone; choose water-tolerant crops for the lowest spots.
USDA NRCS SSURGO
Surface pH
From county recordsTopsoil across the Southwest Florida (Naples–Fort Myers–Sarasota) runs pH 4.8–6.3 — acidic in all six of them.
Blueberries, potatoes, and rhododendrons thrive in it, but most vegetables start locking out nutrients below about pH 6.0 and grow pale and stunted no matter how much you feed them.
A measured lime application raises pH for the crops that need it — but test first, because the right rate depends on your own soil, not the county average.
USDA NRCS SSURGO
Safe to Grow Here?
What the federal record shows across the Southwest Florida (Naples–Fort Myers–Sarasota) — and how to grow with it.
Across the Southwest Florida (Naples–Fort Myers–Sarasota)'s 6 counties the federal record holds 6,888 documented sites, mostly Underground Storage Tanks (2,694), Brownfields (2,449) and Nitrate (1,548). The heaviest single county is Lee County, with 2,366.
That is a regional count, not a reading of any one lot — proximity to a documented site is information, not a diagnosis. Open the map outlined to the Southwest Florida (Naples–Fort Myers–Sarasota) to see which records sit where you actually grow.
Sources Checked
Summed across the 6 counties in the Southwest Florida (Naples–Fort Myers–Sarasota)
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Sources: EPA, USGS — 1.8M documented sites tracked nationwide across 9 federal source types.
Your land is one point inside the Southwest Florida (Naples–Fort Myers–Sarasota)
Everything above resolves to the Southwest Florida (Naples–Fort Myers–Sarasota) as a whole — a footprint spanning USDA zones 9b-10b. Your parcel sits in exactly one of them. 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 region 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 regional average.
Your Lot vs the Southwest Florida (Naples–Fort Myers–Sarasota) Average
Southwest Florida (Naples–Fort Myers–Sarasota) Average
- ●USDA Zones 9b-10b, averaged across Southwest Florida (Naples–Fort Myers–Sarasota)
- ●One soil character for all of Southwest Florida (Naples–Fort Myers–Sarasota)
- ●State-average frost dates
YOUR Parcel
- ✓Your exact zone, not Southwest Florida (Naples–Fort Myers–Sarasota)'s 9b-10b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your parcel in the Southwest Florida (Naples–Fort Myers–Sarasota)
Pull a site-specific report for your exact address in the Southwest Florida (Naples–Fort Myers–Sarasota) — soil, sun, drainage, frost risk, contamination, and scored plant recommendations.
Three things about your lot that Southwest Florida (Naples–Fort Myers–Sarasota) averages can't show:
We read public map data around The Southwest Florida (Naples–Fort Myers–Sarasota) — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Southwest Florida (Naples–Fort Myers–Sarasota) average
How we know this about the Southwest Florida (Naples–Fort Myers–Sarasota)
The boundary: a cluster of neighboring counties. Growing regions have no official boundary, so this footprint is our published one, and every figure on this page was measured over the counties inside it rather than borrowed from the state around it.
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, aggregated across the footprint; the growing season from NOAA Regional Climate Centers ACIS 1991–2020 28°F normals, read at each member’s own record; boundaries from US Census TIGER/Line 2025; the contamination record from the federal sources named in that beat above; the soil from the USDA NRCS SSURGO survey, read at each member county’s own record and weighted to this footprint by land area. Where a member carries no record of its own, it is absent from the figure rather than filled in.
Common questions about the Southwest Florida (Naples–Fort Myers–Sarasota)
What hardiness zone is the Southwest Florida (Naples–Fort Myers–Sarasota)?
The Southwest Florida (Naples–Fort Myers–Sarasota) spans USDA hardiness zones 9b-10b, aggregated from the USDA Agricultural Research Service Plant Hardiness Zone Map 2023 across the region's counties. Zones reflect average annual extreme minimum temperatures from 1991–2020 data.
What grows well in the Southwest Florida (Naples–Fort Myers–Sarasota)?
The Southwest Florida (Naples–Fort Myers–Sarasota)'s conditions suit plants such as Tomato, Sweet Potato, Jalapeno, Mango, Orange, Banana. What actually thrives on any one site still turns on its specific soil, sun, and drainage — we score each plant against the real conditions at your address.
How is the Southwest Florida (Naples–Fort Myers–Sarasota) defined?
The Southwest Florida (Naples–Fort Myers–Sarasota) is defined here as a curated cluster of 6 neighboring counties that share a growing character. Growing regions have no official boundary, so this footprint is our published one — every county in it is named on this page.
Which states does the Southwest Florida (Naples–Fort Myers–Sarasota) cover?
The Southwest Florida (Naples–Fort Myers–Sarasota) spans Florida. Each state's full growing guide is linked on this page.
What other growing regions cover the same states?
Gulf Coast, Florida Panhandle, Northeast Florida, Central Florida Ridge, Everglades Agricultural Area, and Tampa Bay share at least one state with the Southwest Florida (Naples–Fort Myers–Sarasota). Growing regions overlap and interlock — a single address can sit inside more than one, which is why the precise read is always the parcel, not the region.
What this page reads at the Southwest Florida (Naples–Fort Myers–Sarasota)’s own scale
5 of the readings below were taken at the Southwest Florida (Naples–Fort Myers–Sarasota)'s own scale — the zone 9b-10b band across its footprint and 6,888 documented federal contamination records across its 6 counties, 2,366 of them in Lee County alone; one is borrowed from a wider read, named and linked below.
Measured here
- The USDA hardiness band 9b-10b aggregated across all 6 counties in the footprintUSDA PHZM 2023
- The boundary itself — the 6 counties this region is curated fromGrowable Ground subregion registry
- The growing character that makes this region distinct from the states it crossesGrowable Ground subregion registry
- The federal contamination record over the whole footprint — 6,888 documented federal contamination records across its 6 counties, 2,366 of them in Lee County aloneEPA, USGS and USDA federal site records
- The soil order mix across the footprint — 40% Alfisols, topsoil pH 4.8–6.3, area-weighted across its 6 mapped countiesUSDA NRCS SSURGO
Inherited from a wider read
- The candidate plant list — its state's curated sets, merged and filtered to zones 9b-10bfrom Florida
What this page can’t tell you
- Frost dates — they swing too far across a footprint this size to quote as one regional numberfrost dates explained →
- Which of those soils your own ground sits on — the survey maps them county-wide, and they change across a drivewaysoil types explained →
- The soil pH, drainage, sun hours, and frost pockets on one specific lotwhy one lot differs from the next →
Explore the Southwest Florida (Naples–Fort Myers–Sarasota)
State growing guides
Counties in this region
Other growing regions across Florida
The humid, near-frost-free coastal rim of the Gulf of Mexico — long seasons, sandy and alluvial soils, heat, and hurricanes shaping what thrives. (Representative coastal counties, not exhaustive.)
North Florida's mild-winter coastal plain of sandy and clay soils — a transition zone growing both Southern staples and subtropical fruit.
The Atlantic-facing northeast peninsula — Jacksonville, Gainesville, and St. Augustine along the St. Johns River — where ocean-moderated Zone 9a–9b winters and deep sandy coastal-plain flatwoods set a warmer floor and a tighter, earlier frost window than the Gulf-side Panhandle to the west (no genuine 8b interior here; last frost lands ~late January to mid-February).
The Lake Wales Ridge, a well-drained white-sand spine running about 100 miles down the Florida peninsula from Lake County south through Orange, Osceola, Polk, and Highlands, anchors this historic citrus belt in USDA zones 9b–10a with 323-to-335-day frost-free seasons.
The Everglades Agricultural Area is roughly 700,000 acres of drained peat-and-muck farmland south of Lake Okeechobee, defined under Florida's Everglades Forever Act (§373.4592, F.S.); its member counties span USDA zones 10a to 10b with a frost-free to 326-plus-day growing season, the deep organic soils behind the region's sugarcane and winter-vegetable harvests.
Florida's central Gulf-coast metro, where Tampa Bay's water holds the immediate shoreline in near-frost-free zone 10a while the ridge just inland at Pasco drops to 9b — a maritime coastal-versus-interior split at one latitude that changes when tender crops can safely go in the ground.