Plant City, Florida, sits in USDA hardiness zone 9b — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Expect okra, meyer lemon, california poppy, and artichoke to be strong candidates here; the deciding factors on any one parcel stay local — soil, sun, and drainage.
Even in Plant City, 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 Plant City 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 Plant City — soil, climate, flood, and parcel records. How we handle your address.
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Plant City — the short answer
Plant City, Florida: USDA zone 9b, about 332 days between hard freezes, across 19K acres of city.
- USDA zone
- 9b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Jan 22
- NOAA 1991–2020 Climate Normals, 28°F — this town
- First hard freeze (28°F)
- Dec 20
- NOAA 1991–2020 Climate Normals, 28°F — this town
- Days between freezes
- ~332
- NOAA 1991–2020 Climate Normals, 28°F — this town
- City area
- 19K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. Hard-freeze dates are this town’s own 28°F normals: light frosts run a few weeks past them, and tender transplants usually wait 2–3 weeks after the last hard freeze.
Hardiness Zone Range
Zone 9b is Plant City's average, not your lot's — a low corner or a tree line moves it. Against Plant City's 332-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Plant City
Each reading below is measured for Plant City itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
MeasuredPlant City runs about 332 days between hard freezes — 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
MeasuredPlant City 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 Plant City is in
Plant City sits in the Southern Coastal Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Plant City's own centroid rather than borrowed from Hillsborough County.
What Grows in Plant City
Every plant below cleared Plant City's own zone 9b and its 332-day season. Each card opens that plant's Florida profile. How we score.
Is it too late to plant in Plant City?
For most of the year, no — what changes is which crops still fit the days remaining. Cool-season crops can go in from around Jan 1; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Jan 22 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 20 — 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 Plant City
Closest first, within ~10 miles of Plant City. Listing isn't leaking, and distance isn't exposure.
- HILLSBOROUGH CNTY-PLANT CITY COURTHOUSEUnderground Storage Tanks · 700 ft
- CHEVRON-W K MCCLENDONUnderground Storage Tanks · 850 ft
- QUICK CHANGEUnderground Storage Tanks · 1000 ft
- CARTER TRACTOR CO INCUnderground Storage Tanks · 1100 ft
- FATHER & SON GARAGEUnderground Storage Tanks · 1100 ft
- FLORIDA DEP DSCP FAC ID# 299501205Brownfields · 1200 ft
- SUNOCO #304Underground Storage Tanks · 1300 ft
- NATIONAL OIL COSuperfund · 1300 ft
- THOMPSON HAROLD FUnderground Storage Tanks · 1300 ft
- GREYHOUND LINES INCUnderground Storage Tanks · 1500 ft
- DAVIS FORD INCUnderground Storage Tanks · 1600 ft
- PLANT CITY LANDFILLSuperfund · 1600 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Plant City'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 Plant City.
Sources Checked
within ~10 miles of Plant City
Severity Distribution
within ~10 miles of Plant City
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Plant City, two things run higher than the national average within ~10 miles of Plant City — Superfund (17 sites) and Toxics Release Inventory (61 sites). That's not a problem with your land — it's information about it.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Check your specific parcel in Plant City
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 Plant City average
Your land is one point inside Plant City
Everything above resolves to Plant City as a whole — one PHZM band and one 28°F frost record, read across 19K 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 city 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 Plant City Average
Plant City Average
- ●USDA Zones 9b, averaged across Plant City
- ●One soil character for all of Plant City
- ●Frost dates read at Plant City's scale: Jan 22 to Dec 20
YOUR Parcel
- ✓Your exact zone, not Plant City's 9b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Plant City
Pull a site-specific report for your exact address in Plant City, Florida — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Plant City averages can't show:
We read public map data around Plant City — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Plant City average
How we know this about Plant City
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at this city’s own centroid; hard-freeze dates from NOAA 1991–2020 28°F normals at Plant City’s own record; 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 city grain anywhere on this page — there is no city-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 Plant City
When does frost risk typically end in Plant City?
The last hard freeze (28°F) in Plant City typically lands around Jan 22, 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 12.
When is the first frost in Plant City?
The first hard freeze (28°F) in Plant City typically arrives around Dec 20, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Dec 6, so the watching starts about Nov 20 — about 332 days after the spring freeze cleared.
How long is the growing season in Plant City?
Measured between 28°F hard freezes, Plant City sees about 332 frost-free days — roughly Jan 22 through Dec 20, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Feb 12 to Dec 6, about 297 days.
Is the soil safe to grow vegetables in Plant City?
The federal record around Plant City runs heavier than most — 959 documented sites, mostly Underground Storage Tanks entries (511), the nearest Underground Storage Tanks record about 0.1 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 Plant City?
From about Nov 20 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 20 (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 20. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Plant City's scale — its 9b band and its 332-day season. Your yard writes its own version of Plant City'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 Plant City’s own scale
6 of the readings below were taken at Plant City's own scale — its own ~332-day season between 28°F freezes, the 19,110 acres it covers and 959 documented sites around it; 4 are borrowed from a wider read, named and linked below.
Measured here
- Plant City's own USDA hardiness band, zones 9bUSDA PHZM 2023
- Plant City's own 28°F hard-freeze dates, about Jan 22 and Dec 20 and the ~332-day span between themNOAA 1991–2020 Climate Normals
- 959 documented contamination sites on the federal record near Plant City, the closest Underground Storage Tanks record about 0.1 miles out from the town centreFederal environmental registers
- Plant City's boundary and the 19,110 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 9b and a ~332-day seasonGrowable Ground crop-matching engine
- The ecoregion at Plant City's own centroid, the Southern Coastal PlainUS EPA Level III Ecoregions
Inherited from a wider read
- Soil character — no town-scale survey exists, so Plant City's 19,110 acres read through its county's SSURGO summaryfrom Hillsborough County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Hillsborough 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 Hillsborough County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Plant City's 19,110 acreswhy one lot differs from the next →
- Which side of Plant City you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 19,110 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks 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 Plant City-wide figureread your own land →
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