Lynn Haven, Florida, sits in USDA hardiness zone 9a — a band that supports both cool-season staples and warm-season crops chosen to fit the local frost window.
The conditions favor artichoke, fig, california poppy, and cabbage, among others — though every individual site edits that list with its own soil, sun, and drainage.
Even in Lynn Haven, 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 Lynn Haven 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 Lynn Haven — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Lynn Haven — the short answer
Lynn Haven, Florida: USDA zone 9a, about 312 days between hard freezes, across 7K acres of city.
- USDA zone
- 9a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Feb 5
- Bay County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 14
- Bay County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~312
- Bay County normal — NOAA 1991–2020, nearest to this town
- City area
- 7K 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 Bay County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 9a is Lynn Haven's average, not your lot's — a low corner or a tree line moves it. Against Lynn Haven's 312-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Lynn Haven
Each reading below is measured for Lynn Haven itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length
From county recordsLynn Haven runs about 312 days between hard freezes (read from Bay County, the closest normal to Lynn Haven) — 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
MeasuredLynn Haven 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 Lynn Haven is in
Lynn Haven sits in the Southern Coastal Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Lynn Haven's own centroid rather than borrowed from Bay County.
What Grows in Lynn Haven
Every plant below cleared Lynn Haven's own zone 9a and its 312-day season. Each card opens that plant's Florida profile. How we score.






























Is it too late to plant in Lynn Haven?
Too late for some crops, right on time for others — a growing season is a sequence, not a deadline. Cool-season crops can go in from around Jan 8; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 5 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 14 — long-season crops need about 90 days of runway, quick greens only 30. Here the calendar nearly circles: cool-season crops take the winter shift, and the next window is always close.
What's on the federal record near Lynn Haven
Closest first, within ~10 miles of Lynn Haven. Listing isn't leaking, and distance isn't exposure.
- SUNSHINE JR #171AUnderground Storage Tanks · 0.5 mi
- EXPRESS LANE #793 - FL0043Underground Storage Tanks · 0.5 mi
- TEXACO-FOOD STORE #4171Underground Storage Tanks · 0.5 mi
- O'REILLY AUTO PARTS STORE #2368Brownfields · 0.7 mi
- BENJAY INCUnderground Storage Tanks · 0.7 mi
- FLOWERS BAKERY THRIFT STOREUnderground Storage Tanks · 0.7 mi
- UNIQUE CUSTOMS & AUTO REPAIRBrownfields · 0.7 mi
- DIVYAKRUPA INCUnderground Storage Tanks · 0.7 mi
- LYNN HAVEN STOREUnderground Storage Tanks · 0.8 mi
- LEISURE AUTOSUnderground Storage Tanks · 0.8 mi
- CVS PHARMACY #3667Brownfields · 0.8 mi
- WALGREENS(FORMERLY SPRADLEYS CHEVRON)Underground Storage Tanks · 0.8 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Lynn Haven'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 Lynn Haven.
Total Sites
839
within ~10 miles of Lynn Haven
Risk Level
Elevated
Highest-severity
4 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Lynn Haven
Severity Distribution
within ~10 miles of Lynn Haven
Highest-Severity Sites
Know Before You Grow
- •Underground tanks leak petroleum as they age — near a former filling station, test the soil.
- •Near a brownfield, raised beds of imported soil give your food clean ground.
- •On a private well, test for nitrates: above 10 mg/L the water needs treatment before irrigating.
Check your specific parcel in Lynn Haven
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 Lynn Haven average
Your land is one point inside Lynn Haven
Everything above resolves to Lynn Haven as a whole — one PHZM band, read across 7K acres, with hard-freeze dates borrowed from Bay 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 Lynn Haven Average
Lynn Haven Average
- ●USDA Zones 9a, averaged across Lynn Haven
- ●One soil character for all of Lynn Haven
- ●Frost dates read at Lynn Haven's scale: Feb 5 to Dec 14
YOUR Parcel
- ✓Your exact zone, not Lynn Haven's 9a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Lynn Haven
Pull a site-specific report for your exact address in Lynn Haven, Florida — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Lynn Haven averages can't show:
We read public map data around Lynn Haven — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Lynn Haven average
How we know this about Lynn Haven
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 Bay 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 Lynn Haven
When does frost risk typically end in Lynn Haven?
The last hard freeze (28°F) in Lynn Haven typically lands around Feb 5, 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 26.
When is the first frost in Lynn Haven?
The first hard freeze (28°F) in Lynn Haven typically arrives around Dec 14, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 30, so the watching starts about Nov 14 — about 312 days after the spring freeze cleared.
How long is the growing season in Lynn Haven?
Measured between 28°F hard freezes, Lynn Haven sees about 312 frost-free days — roughly Feb 5 through Dec 14, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Feb 26 to Nov 30, about 277 days.
Is the soil safe to grow vegetables in Lynn Haven?
The federal record around Lynn Haven is a meaningful one — 839 documented sites, mostly Underground Storage Tanks entries (446), the nearest Underground Storage Tanks record about 0.5 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 Lynn Haven?
From about Nov 14 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 14 (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 14. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Lynn Haven's scale — its 9a band and its 312-day season. Your yard writes its own version of Lynn Haven'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 Lynn Haven’s own scale
5 of the readings below were taken at Lynn Haven's own scale — the 6,737 acres it covers and 839 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Lynn Haven's own USDA hardiness band, zones 9aUSDA PHZM 2023
- 839 documented contamination sites on the federal record near Lynn Haven, the closest Underground Storage Tanks record about 0.5 miles out from the town centreFederal environmental registers
- Lynn Haven's boundary and the 6,737 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 9a and a ~312-day seasonGrowable Ground crop-matching engine
- The ecoregion at Lynn Haven's own centroid, the Southern Coastal PlainUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Lynn Haven has no normal of its own, so its county's is the closest measured readfrom Bay County
- Soil character — no town-scale survey exists, so Lynn Haven's 6,737 acres read through its county's SSURGO summaryfrom Bay County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Bay 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 Bay County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Lynn Haven's 6,737 acreswhy one lot differs from the next →
- Which side of Lynn Haven you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 6,737 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.5 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 Lynn Haven-wide figureread your own land →
