Mary Esther, Florida, sits in USDA hardiness zone 9a — enough range to grow cool-season vegetables, hardy fruit, and warm-season crops that mature before the first hard frost.
Crops well matched to these conditions include artichoke, fig, california poppy, and cabbage — though what thrives on any one site still turns on its specific soil, sun, and drainage.
Even in Mary Esther, 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 Mary Esther 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 Mary Esther — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Mary Esther — the short answer
Mary Esther, Florida: USDA zone 9a, about 289 days between hard freezes, across 931 acres of city.
- USDA zone
- 9a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 16
- Okaloosa County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 2
- Okaloosa County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~289
- Okaloosa County normal — NOAA 1991–2020, nearest to this town
- City area
- 931 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 Okaloosa County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 9a is Mary Esther's average, not your lot's — a low corner or a tree line moves it. Against Mary Esther's 289-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Mary Esther
Each reading below is measured for Mary Esther itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsMary Esther runs about 289 days between hard freezes (read from Okaloosa County, the closest normal to Mary Esther) — 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
MeasuredMary Esther sits in USDA hardiness zone 9a.
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 Mary Esther is in
Mary Esther sits in the Southern Coastal Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Mary Esther's own centroid, and it is not what its county reads: Okaloosa County is mostly Southeastern Plains. The wider page above you is answering a different question about different ground.
What Grows in Mary Esther
Every plant below cleared Mary Esther's own zone 9a and its 289-day season. Each card opens that plant's Florida profile. How we score.
Is it too late to plant in Mary Esther?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Jan 19; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 16 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 2 — 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 Mary Esther
Closest first, within ~10 miles of Mary Esther. Listing isn't leaking, and distance isn't exposure.
- TARGET STORE T0740Brownfields · 200 ft
- CVS PHARMACY #16224Brownfields · 800 ft
- MARY ESTHER VENTUREUnderground Storage Tanks · 1300 ft
- CVS PHARMACY #3003Brownfields · 1300 ft
- J C PENNEY #1148-6Underground Storage Tanks · 1400 ft
- FORMER CIRCLE K #8350Underground Storage Tanks · 1500 ft
- MARY ESTHER CITYUnderground Storage Tanks · 1600 ft
- CHEVRON #47097Underground Storage Tanks · 1700 ft
- CHEVRON-FORMERUnderground Storage Tanks · 1700 ft
- SUEA MISSIONARY BAPTIST CHURCHUnderground Storage Tanks · 1700 ft
- TOM THUMB FOOD STORE #63Underground Storage Tanks · 1700 ft
- SHELL FOOD MARTUnderground Storage Tanks · 1900 ft
6 more sites are on the record inside the same radius. See them on the map
Measured from Mary Esther'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 Mary Esther.
Total Sites
433
within ~10 miles of Mary Esther
Risk Level
Elevated
Highest-severity
7 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Mary Esther
Severity Distribution
within ~10 miles of Mary Esther
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Mary Esther, two things run higher than the national average within ~10 miles of Mary Esther — PFAS (6 sites) and Superfund (7 sites). Knowing it is half the work — and it's nothing a thoughtful grower can't plan for.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in Mary Esther
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 Mary Esther average
Your land is one point inside Mary Esther
Everything above resolves to Mary Esther as a whole — one PHZM band, read across 931 acres, with hard-freeze dates borrowed from Okaloosa County’s record because no 30-year normal resolves at this city’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 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 Mary Esther Average
Mary Esther Average
- ●USDA Zones 9a, averaged across Mary Esther
- ●One soil character for all of Mary Esther
- ●Frost dates read at Mary Esther's scale: Feb 16 to Dec 2
YOUR Parcel
- ✓Your exact zone, not Mary Esther's 9a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Mary Esther
Pull a site-specific report for your exact address in Mary Esther, Florida — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Mary Esther averages can't show:
We read public map data around Mary Esther — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Mary Esther average
How we know this about Mary Esther
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 Okaloosa 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 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 Mary Esther
When does frost risk typically end in Mary Esther?
The last hard freeze (28°F) in Mary Esther typically lands around Feb 16, 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 Mar 9.
When is the first frost in Mary Esther?
The first hard freeze (28°F) in Mary Esther typically arrives around Dec 2, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 18, so the watching starts about Nov 2 — about 289 days after the spring freeze cleared.
How long is the growing season in Mary Esther?
Measured between 28°F hard freezes, Mary Esther sees about 289 frost-free days — roughly Feb 16 through Dec 2, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 9 to Nov 18, about 254 days.
Is the soil safe to grow vegetables in Mary Esther?
The federal record around Mary Esther is a meaningful one — 433 documented sites, mostly Underground Storage Tanks entries (198), the nearest Brownfields record under a tenth of a mile 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 Mary Esther?
From about Nov 2 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 2 (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 2. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Mary Esther's scale — its 9a band and its 289-day season. Your yard writes its own version of Mary Esther'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 Mary Esther’s own scale
5 of the readings below were taken at Mary Esther's own scale — the 931 acres it covers and 433 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Mary Esther's own USDA hardiness band, zones 9aUSDA PHZM 2023
- 433 documented contamination sites on the federal record near Mary Esther, the closest Brownfields record under a tenth of a mile out from the town centreFederal environmental registers
- Mary Esther's boundary and the 931 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 9a and a ~289-day seasonGrowable Ground crop-matching engine
- Mary Esther sits in the Southern Coastal Plain — not the ecoregion its county mostly readsUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Mary Esther has no normal of its own, so its county's is the closest measured readfrom Okaloosa County
- Soil character — no town-scale survey exists, so Mary Esther's 931 acres read through its county's SSURGO summaryfrom Okaloosa County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Okaloosa 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 Okaloosa County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Mary Esther's 931 acreswhy one lot differs from the next →
- Which side of Mary Esther you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 931 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Brownfields record under a tenth of a mile 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 Mary Esther-wide figureread your own land →