Lake Mary, Florida, sits in USDA hardiness zone 9b — a zone band wide enough that plant choice, not possibility, is the interesting question.
Well-matched crops include okra, meyer lemon, california poppy, and artichoke, and the gap between "grows in the area" and "grows in your yard" is closed by soil, sun, and drainage.
Even in Lake Mary, 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 Lake Mary 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 Lake Mary — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Lake Mary — the short answer
Lake Mary, Florida: USDA zone 9b, about 333 days between hard freezes, across 6K acres of city.
- USDA zone
- 9b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Jan 19
- Seminole County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Dec 18
- Seminole County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~333
- Seminole County normal — NOAA 1991–2020, nearest to this town
- City area
- 6K 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 Seminole County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 9b is Lake Mary's average, not your lot's — a low corner or a tree line moves it. Against Lake Mary's 333-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Lake Mary
Each reading below is measured for Lake Mary itself — here is what it means for a garden here, and the move an experienced grower makes about it.

Season length
From county recordsLake Mary runs about 333 days between hard freezes (read from Seminole County, the closest normal to Lake Mary) — 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
MeasuredLake Mary 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 Lake Mary is in
Lake Mary sits in the Southern Coastal Plain — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Lake Mary's own centroid rather than borrowed from Seminole County.
What Grows in Lake Mary
Every plant below cleared Lake Mary's own zone 9b and its 333-day season. Each card opens that plant's Florida profile. How we score.






























Is it too late to plant in Lake Mary?
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 19 (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 Lake Mary
Closest first, within ~10 miles of Lake Mary. Listing isn't leaking, and distance isn't exposure.
- FRANK GRIFFIN CONSTRUCTIONUnderground Storage Tanks · 1300 ft
- WINN-DIXIE STORE #2566Brownfields · 1700 ft
- WYNNE FAMILY CHIROPRACTICBrownfields · 0.5 mi
- 7 CROWNBrownfields · 0.7 mi
- SAV A TONUnderground Storage Tanks · 0.7 mi
- 7-ELEVEN FOOD STORE #25976Underground Storage Tanks · 0.7 mi
- 84512005 20S30E08Nitrate · 0.8 mi
- LAKE MARY CITY-HARRY TERRY WTPUnderground Storage Tanks · 0.9 mi
- 7-ELEVEN FOOD STORE #25975Underground Storage Tanks · 0.9 mi
- PALMER ELECTRIC COUnderground Storage Tanks · 0.9 mi
- TARGET STORE T0845Brownfields · 1.0 mi
- CVS PHARMACY #16289Brownfields · 1.0 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Lake Mary'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 Lake Mary.
Sources Checked
within ~10 miles of Lake Mary
Severity Distribution
within ~10 miles of Lake Mary
Highest-Severity Sites

A note from Gnorman
What an experienced grower watches for around here
In and around Lake Mary, PFAS runs higher than the national average — 11 sites within ~10 miles of Lake Mary. 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.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Check your specific parcel in Lake Mary
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 Lake Mary average
Your land is one point inside Lake Mary
Everything above resolves to Lake Mary as a whole — one PHZM band, read across 6K acres, with hard-freeze dates borrowed from Seminole 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 Lake Mary Average
Lake Mary Average
- ●USDA Zones 9b, averaged across Lake Mary
- ●One soil character for all of Lake Mary
- ●Frost dates read at Lake Mary's scale: Jan 19 to Dec 18
YOUR Parcel
- ✓Your exact zone, not Lake Mary's 9b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Lake Mary
Pull a site-specific report for your exact address in Lake Mary, Florida — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Lake Mary averages can't show:
We read public map data around Lake Mary — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Lake Mary average
How we know this about Lake Mary
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 Seminole 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 Lake Mary
When does frost risk typically end in Lake Mary?
The last hard freeze (28°F) in Lake Mary typically lands around Jan 19, 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 9.
When is the first frost in Lake Mary?
The first hard freeze (28°F) in Lake Mary 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 333 days after the spring freeze cleared.
How long is the growing season in Lake Mary?
Measured between 28°F hard freezes, Lake Mary sees about 333 frost-free days — roughly Jan 19 through Dec 18, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Feb 9 to Dec 4, about 298 days.
Is the soil safe to grow vegetables in Lake Mary?
The federal record around Lake Mary is a meaningful one — 1,158 documented sites, mostly Underground Storage Tanks entries (623), the nearest Underground Storage Tanks record about 0.2 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 Lake Mary?
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 Lake Mary's scale — its 9b band and its 333-day season. Your yard writes its own version of Lake Mary'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 Lake Mary’s own scale
5 of the readings below were taken at Lake Mary's own scale — the 5,809 acres it covers and 1,158 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Lake Mary's own USDA hardiness band, zones 9bUSDA PHZM 2023
- 1,158 documented contamination sites on the federal record near Lake Mary, the closest Underground Storage Tanks record about 0.2 miles out from the town centreFederal environmental registers
- Lake Mary's boundary and the 5,809 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 9b and a ~333-day seasonGrowable Ground crop-matching engine
- The ecoregion at Lake Mary's own centroid, the Southern Coastal PlainUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Lake Mary has no normal of its own, so its county's is the closest measured readfrom Seminole County
- Soil character — no town-scale survey exists, so Lake Mary's 5,809 acres read through its county's SSURGO summaryfrom Seminole County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Seminole 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 Seminole County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Lake Mary's 5,809 acreswhy one lot differs from the next →
- Which side of Lake Mary you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 5,809 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.2 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 Lake Mary-wide figureread your own land →
More in Florida
Wider growing context
What grows across FloridaLake Mary sits outside our named growing regions, so Florida as a whole is its closest context here.
Nearby growing guides
