Key Vista, Florida, sits in USDA hardiness zone 10a — a range where zone-matched perennials and frost-aware annual timing set what succeeds.
Reliable performers under these conditions include mango, tomato, orange, and sweet potato; what your own ground favors still comes down to its soil, sun, and drainage.
Even in Key Vista, 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 Key Vista 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 Key Vista — soil, climate, flood, and parcel records. How we handle your address.
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Key Vista — the short answer
Key Vista, Florida: USDA zone 10a, about 325 days between hard freezes, across 485 acres of town.
- USDA zone
- 10a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Jan 27
- Pasco County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 18
- Pasco County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~325
- Pasco County normal — NOAA 1991–2020, nearest to this town
- Town area
- 485 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 Pasco County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 10a is Key Vista's average, not your lot's — a low corner or a tree line moves it. Against Key Vista's 325-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Key Vista
Each reading below is measured for Key Vista itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsKey Vista runs about 325 days between hard freezes (read from Pasco County, the closest normal to Key Vista) — 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
MeasuredKey Vista 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 Key Vista is in
Key Vista sits in the Southern Coastal Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Key Vista's own centroid rather than borrowed from Pasco County.
What Grows in Key Vista
Plants matched to Key Vista's USDA zones 10a, 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 Key Vista?
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 1; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Jan 27 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 18 — 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 Key Vista
Closest first, within ~10 miles of Key Vista. Listing isn't leaking, and distance isn't exposure.
- PCUD-PASCO COUNTY REGIONAL PWSPFAS · 600 ft
- ORANGEWOOD WATER SYSTEMPFAS · 600 ft
- ALOHA GARDENS UTILITIESPFAS · 600 ft
- ALOHA GARDENS WAREHOUSEUnderground Storage Tanks · 2000 ft
- ANCLOTE HIGH SCHOOLBrownfields · 1.0 mi
- FL POWER CORP-ANCLOTE POWER PLANTUnderground Storage Tanks · 1.3 mi
- FLORIDA POWER CORP ANCLOTE POWER PLANTToxics Release Inventory · 1.3 mi
- FLORIDA POWER CORP ANCLOTE POWER PLANTBrownfields · 1.3 mi
- DUKE ENERGY FL-ANCLOTE POWER PLTUnderground Storage Tanks · 1.3 mi
- TARPON SPRGS READY MIX AND BLK PLUnderground Storage Tanks · 1.6 mi
- GAUSE BUILT MARINE INCBrownfields · 1.6 mi
- GAUSE BUILT MARINE INCToxics Release Inventory · 1.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Key Vista'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 Key Vista.
Sources Checked
within ~10 miles of Key Vista
Severity Distribution
within ~10 miles of Key Vista
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Key Vista, Nitrate runs higher than the national average — 304 sites within ~10 miles of Key Vista. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.
Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).
Check your specific parcel in Key Vista
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 Key Vista average
Your land is one point inside Key Vista
Everything above resolves to Key Vista as a whole — one PHZM band, read across 485 acres, with hard-freeze dates borrowed from Pasco County’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 Key Vista Average
Key Vista Average
- ●USDA Zones 10a, averaged across Key Vista
- ●One soil character for all of Key Vista
- ●Frost dates read at Key Vista's scale: Jan 27 to Dec 18
YOUR Parcel
- ✓Your exact zone, not Key Vista's 10a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Key Vista
Pull a site-specific report for your exact address in Key Vista, Florida — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Key Vista averages can't show:
We read public map data around Key Vista — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Key Vista average
How we know this about Key Vista
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 Pasco County’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 Key Vista
When does frost risk typically end in Key Vista?
The last hard freeze (28°F) in Key Vista typically lands around Jan 27, 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 17.
When is the first frost in Key Vista?
The first hard freeze (28°F) in Key Vista typically arrives around Dec 18, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Dec 4, so the watching starts about Nov 18 — about 325 days after the spring freeze cleared.
How long is the growing season in Key Vista?
Measured between 28°F hard freezes, Key Vista sees about 325 frost-free days — roughly Jan 27 through Dec 18, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Feb 17 to Dec 4, about 290 days.
Is the soil safe to grow vegetables in Key Vista?
The federal record around Key Vista is a meaningful one — 985 documented sites, mostly Underground Storage Tanks entries (382), the nearest PFAS 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 Key Vista?
From about Nov 18 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 18 (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 18. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Key Vista's scale — its 10a band and its 325-day season. Your yard writes its own version of Key Vista'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 Key Vista’s own scale
4 of the readings below were taken at Key Vista's own scale — the 485 acres it covers and 985 documented sites around it; 6 are borrowed from a wider read, named and linked below.
Measured here
- Key Vista's own USDA hardiness band, zones 10aUSDA PHZM 2023
- 985 documented contamination sites on the federal record near Key Vista, the closest PFAS record about 0.1 miles out from the town centreFederal environmental registers
- Key Vista's boundary and the 485 acres inside itUS Census TIGER/Line 2025
- The ecoregion at Key Vista's own centroid, the Southern Coastal PlainUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Key Vista has no normal of its own, so its county's is the closest measured readfrom Pasco County
- Soil character — no town-scale survey exists, so Key Vista's 485 acres read through its county's SSURGO summaryfrom Pasco County
- The candidate plant list — Florida's curated set, filtered to this zone band and re-ordered by how much margin each has herefrom Florida
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Pasco 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 Pasco County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Key Vista's 485 acreswhy one lot differs from the next →
- Which side of Key Vista you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 485 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest PFAS 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 Key Vista-wide figureread your own land →
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