Pasadena Hills, Florida, sits in USDA hardiness zone 9b — a zone band wide enough that plant choice, not possibility, is the interesting question.
Growers here do well with okra, meyer lemon, california poppy, and artichoke — with the usual caveat that any single yard's soil, sun, and drainage cast the deciding vote.
Even in Pasadena Hills, 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 Pasadena Hills 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 Pasadena Hills — soil, climate, flood, and parcel records. How we handle your address.
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Pasadena Hills — the short answer
Pasadena Hills, Florida: USDA zone 9b, about 325 days between hard freezes, across 19K acres of town.
- USDA zone
- 9b
- 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
- 19K 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 9b is Pasadena Hills's average, not your lot's — a low corner or a tree line moves it. Against Pasadena Hills's 325-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Pasadena Hills
Each reading below is measured for Pasadena Hills itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsPasadena Hills runs about 325 days between hard freezes (read from Pasco County, the closest normal to Pasadena Hills) — 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
MeasuredPasadena Hills 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 Pasadena Hills is in
Pasadena Hills sits in the Southern Coastal Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Pasadena Hills's own centroid rather than borrowed from Pasco County.
What Grows in Pasadena Hills
Every plant below cleared Pasadena Hills's own zone 9b and its 325-day season. Each card opens that plant's Florida profile. How we score.
Is it too late to plant in Pasadena Hills?
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 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. And with a calendar this mild, the honest answer is that planting barely stops — winter opens seasons colder regions never see.
What's on the federal record near Pasadena Hills
Closest first, within ~10 miles of Pasadena Hills. Listing isn't leaking, and distance isn't exposure.
- KIRKLAND RANCHUnderground Storage Tanks · 1.2 mi
- EAST PASCO TRANSFER STATION DRIVEWAY EXTENSIONBrownfields · 1.2 mi
- EVANS PROPERTIES INC-PASADENA BARNUnderground Storage Tanks · 1.5 mi
- AUSTIN SMITH FLRD WELL NEAR ZEPHYRHILLS FLNitrate · 2.0 mi
- PRICE DEVELOPMENT COUnderground Storage Tanks · 2.1 mi
- EILAND BLVD FLRD WELL NEAR ZEPHYRHILLS FLNitrate · 2.2 mi
- CUNNINGHAM JOHN TUnderground Storage Tanks · 2.5 mi
- PRESTO FOOD STORE #10Underground Storage Tanks · 2.7 mi
- CIRCLE K #2705977Underground Storage Tanks · 3.0 mi
- FMC ONCOLOGYBrownfields · 3.1 mi
- FMC INTERVENTIONAL AND NON-INTERVENTIONAL PAIN MEDICINEBrownfields · 3.1 mi
- FMC PRIMARY CARE ZEPHYRHILLSBrownfields · 3.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Pasadena Hills'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 Pasadena Hills.
Total Sites
570
within ~10 miles of Pasadena Hills
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Pasadena Hills
Severity Distribution
within ~10 miles of Pasadena Hills
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Pasadena Hills, PFAS runs higher than the national average — 5 sites within ~10 miles of Pasadena Hills. It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check your specific parcel in Pasadena Hills
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 Pasadena Hills average
Your land is one point inside Pasadena Hills
Everything above resolves to Pasadena Hills as a whole — one PHZM band, read across 19K 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 Pasadena Hills Average
Pasadena Hills Average
- ●USDA Zones 9b, averaged across Pasadena Hills
- ●One soil character for all of Pasadena Hills
- ●Frost dates read at Pasadena Hills's scale: Jan 27 to Dec 18
YOUR Parcel
- ✓Your exact zone, not Pasadena Hills's 9b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Pasadena Hills
Pull a site-specific report for your exact address in Pasadena Hills, Florida — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Pasadena Hills averages can't show:
We read public map data around Pasadena Hills — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Pasadena Hills average
How we know this about Pasadena Hills
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 Pasadena Hills
When does frost risk typically end in Pasadena Hills?
The last hard freeze (28°F) in Pasadena Hills 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 Pasadena Hills?
The first hard freeze (28°F) in Pasadena Hills 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 Pasadena Hills?
Measured between 28°F hard freezes, Pasadena Hills 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 Pasadena Hills?
The federal record around Pasadena Hills is a meaningful one — 570 documented sites, mostly Underground Storage Tanks entries (252), the nearest Underground Storage Tanks record about 1.2 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 Pasadena Hills?
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 Pasadena Hills's scale — its 9b band and its 325-day season. Your yard writes its own version of Pasadena Hills'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 Pasadena Hills’s own scale
5 of the readings below were taken at Pasadena Hills's own scale — the 19,142 acres it covers and 570 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Pasadena Hills's own USDA hardiness band, zones 9bUSDA PHZM 2023
- 570 documented contamination sites on the federal record near Pasadena Hills, the closest Underground Storage Tanks record about 1.2 miles out from the town centreFederal environmental registers
- Pasadena Hills's boundary and the 19,142 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 9b and a ~325-day seasonGrowable Ground crop-matching engine
- The ecoregion at Pasadena Hills's own centroid, the Southern Coastal PlainUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Pasadena Hills 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 Pasadena Hills's 19,142 acres read through its county's SSURGO summaryfrom Pasco County
- 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 Pasadena Hills's 19,142 acreswhy one lot differs from the next →
- Which side of Pasadena Hills you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 19,142 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 1.2 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 Pasadena Hills-wide figureread your own land →
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