Charlotte Harbor, Florida, sits in USDA hardiness zone 10a — a zone band wide enough that plant choice, not possibility, is the interesting question.
A short list that earns its place here — artichoke, meyer lemon, california poppy, and cabbage — with any one site's soil, sun, and drainage making the final cut.
Even in Charlotte Harbor, 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 Charlotte Harbor 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 Charlotte Harbor — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Charlotte Harbor — the short answer
Charlotte Harbor, Florida: USDA zone 10a, no 28°F killing freeze on record — the season is year-round, across 1K acres of town.
- USDA zone
- 10a
- USDA PHZM 2023
- Killing freeze
- None on record
- NOAA RCC ACIS 1991–2020, this town’s own record
- Town area
- 1K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. The year-round finding is measured — a 30-year record with no 28°F killing freeze in it — never inferred from missing dates.
Hardiness Zone Range
Zone 10a is Charlotte Harbor's average, not your lot's — a low corner or a tree line moves it. Against Charlotte Harbor's no killing freeze on record, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Charlotte Harbor
Each reading below is measured for Charlotte Harbor itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Winter hardiness
MeasuredCharlotte Harbor sits in USDA hardiness zone 10a.
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 Charlotte Harbor is in
Charlotte Harbor sits in the Southern Coastal Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Charlotte Harbor's own centroid rather than borrowed from Charlotte County.
What Grows in Charlotte Harbor
Every plant below cleared Charlotte Harbor's own zone 10a. Each card opens that plant's Florida profile. How we score.
What's on the federal record near Charlotte Harbor
Closest first, within ~10 miles of Charlotte Harbor. Listing isn't leaking, and distance isn't exposure.
- CIRCLE K #2707431Underground Storage Tanks · 1600 ft
- DR D'S AUTO & MARINE REPAIR INCBrownfields · 1900 ft
- ORTEGAS ELECTRO-BAKE AUTO PAINTING INCBrownfields · 1900 ft
- CLUNES AUTO BODY INCBrownfields · 1900 ft
- A 1 AUTO BODYBrownfields · 2000 ft
- 40S22E36657203312 21- FLNitrate · 2000 ft
- BAILEY'S TOWINGBrownfields · 2100 ft
- FLORIDA MARBLE OF CHARLOTTE COUNTY INCToxics Release Inventory · 2300 ft
- SINGLE SOURCE INCBrownfields · 2500 ft
- AFFORDABLE AUTO PAINTINGBrownfields · 2500 ft
- HARSHAWS OLE TYME COLLISIONBrownfields · 0.5 mi
- DELTA TRUCK LIFTBrownfields · 0.5 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Charlotte Harbor'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 Charlotte Harbor.
Total Sites
443
within ~10 miles of Charlotte Harbor
Risk Level
Elevated
Highest-severity
15 Toxics Release Inventory facilities
Sources Checked
within ~10 miles of Charlotte Harbor
Severity Distribution
within ~10 miles of Charlotte Harbor
Highest-Severity Sites
Know Before You Grow
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in Charlotte Harbor
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 Charlotte Harbor average
Your land is one point inside Charlotte Harbor
Everything above resolves to Charlotte Harbor as a whole — one PHZM band and one 28°F frost record, read across 1K acres. 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 Charlotte Harbor Average
Charlotte Harbor Average
- ●USDA Zones 10a, averaged across Charlotte Harbor
- ●One soil character for all of Charlotte Harbor
- ●State-average frost dates
YOUR Parcel
- ✓Your exact zone, not Charlotte Harbor's 10a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Charlotte Harbor
Pull a site-specific report for your exact address in Charlotte Harbor, Florida — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Charlotte Harbor averages can't show:
We read public map data around Charlotte Harbor — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Charlotte Harbor average
How we know this about Charlotte Harbor
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, with the labelled statewide window where none resolves; 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 Charlotte Harbor
Is it too late to plant in Charlotte Harbor?
No — Charlotte Harbor has no 28°F killing freeze in the 30-year station record, so the growing season is year-round and there is no last-frost date to wait for. Planting is paced by rainfall, heat and daylength instead of by frost: start heat-lovers any month, and time cool-season crops (lettuce, brassicas, peas) for the cooler, wetter half of the year or for higher ground. Succession sowing every few weeks works all year, so the limit is what you can keep watered and harvested, not the calendar.
When does frost risk typically end in Charlotte Harbor?
It doesn't — Charlotte Harbor records no 28°F killing freeze at all across the 1991–2020 station record, so there is no spring frost date to plant after. Cold still matters with elevation: the higher you garden, the cooler the nights, and a few tropical crops sulk below about 60°F even where they never freeze.
How long is the growing season in Charlotte Harbor?
Year-round — the 1991–2020 station record for Charlotte Harbor contains no 28°F killing freeze, so there is no season to measure between freezes. What paces planting instead is heat, rainfall and daylength: the hottest, wettest stretch is the hard part for cool-season crops, not winter. Elevation is the one real exception — the higher you garden, the colder the nights get.
Is the soil safe to grow vegetables in Charlotte Harbor?
The federal record around Charlotte Harbor is a meaningful one — 443 documented sites, mostly Brownfields entries (189), the nearest Underground Storage Tanks record about 0.3 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.
Everything above is measured at Charlotte Harbor's scale — its 10a band and its no killing freeze on record. Your yard writes its own version of Charlotte Harbor'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 Charlotte Harbor’s own scale
6 of the readings below were taken at Charlotte Harbor's own scale — the 1,485 acres it covers and 443 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Charlotte Harbor's own USDA hardiness band, zones 10aUSDA PHZM 2023
- No 28°F killing freeze in the 30-year station record covering Charlotte Harbor — a year-round growing seasonNOAA Regional Climate Centers ACIS, 1991-2020
- 443 documented contamination sites on the federal record near Charlotte Harbor, the closest Underground Storage Tanks record about 0.3 miles out from the town centreFederal environmental registers
- Charlotte Harbor's boundary and the 1,485 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear Charlotte Harbor's hardiness zoneGrowable Ground crop-matching engine
- The ecoregion at Charlotte Harbor's own centroid, the Southern Coastal PlainUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Charlotte Harbor's 1,485 acres read through its county's SSURGO summaryfrom Charlotte County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Charlotte County
- The growing challenges every Florida grower plans around — written at state scale, so they stay on the state guidefrom Florida
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom Charlotte County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Charlotte Harbor's 1,485 acreswhy one lot differs from the next →
- Which side of Charlotte Harbor you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 1,485 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 Charlotte Harbor-wide figureread your own land →