Lithonia, Georgia, sits in USDA hardiness zone 8a — room for a real mix of vegetables, fruit, and perennials matched to the local frost calendar.
A short list that earns its place here — cabbage, fig, california poppy, and collard greens — with any one site's soil, sun, and drainage making the final cut.
Even in Lithonia, 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 Lithonia 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 Lithonia — soil, climate, flood, and parcel records. How we handle your address.
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Lithonia — the short answer
Lithonia, Georgia: USDA zone 8a, about 269 days between hard freezes, across 594 acres of city.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 5
- DeKalb County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Nov 29
- DeKalb County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~269
- DeKalb County normal — NOAA 1991–2020, nearest to this town
- City area
- 594 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 DeKalb County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8a is Lithonia's average, not your lot's — a low corner or a tree line moves it. Against Lithonia's 269-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Lithonia
Each reading below is measured for Lithonia itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsLithonia runs about 269 days between hard freezes (read from DeKalb County, the closest normal to Lithonia) — 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
MeasuredLithonia sits in USDA hardiness zone 8a.
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 Lithonia is in
Lithonia sits in the Piedmont — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Lithonia's own centroid rather than borrowed from DeKalb County.
What Grows in Lithonia
Every plant below cleared Lithonia's own zone 8a and its 269-day season. Each card opens that plant's Georgia profile. How we score.
Is it too late to plant in Lithonia?
Almost never — the real question is what to plant next. Cool-season crops can go in from around Feb 5; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 5 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 29 — 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 Lithonia
Closest first, within ~10 miles of Lithonia. Listing isn't leaking, and distance isn't exposure.
- TURNER HILL ROAD DRUM SITESuperfund · 800 ft
- BST/LITHONIA CO/F5604Underground Storage Tanks · 1300 ft
- UNION 76 STATION/C M FARRILL JRUnderground Storage Tanks · 1400 ft
- HOME DEPOT DC #5865Brownfields · 2000 ft
- SHILOH HIGH SCHOOLUnderground Storage Tanks · 2200 ft
- SHILOH MIDDLE SCHOOL STATION #7Underground Storage Tanks · 2200 ft
- LITHONIA QUARRYUnderground Storage Tanks · 2200 ft
- DEKALB COUNTY GOV/ EAST PRECINCTUnderground Storage Tanks · 2300 ft
- ESTATE OF R STRICKLANDUnderground Storage Tanks · 2600 ft
- E-SCRAPX INCBrownfields · 0.6 mi
- GEORGIA PLATING INCToxics Release Inventory · 0.6 mi
- LITHONIA LLC #124Underground Storage Tanks · 0.6 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Lithonia'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 Lithonia.
Total Sites
885
within ~10 miles of Lithonia
Risk Level
Elevated
Highest-severity
12 Superfund sites (none NPL-listed)
Sources Checked
within ~10 miles of Lithonia
Severity Distribution
within ~10 miles of Lithonia
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Lithonia, two things run higher than the national average within ~10 miles of Lithonia — Toxics Release Inventory (79 sites) and Superfund (12 sites). That's not a problem with your land — it's information about it.
Toxics Release Inventory: TRI facilities report annual chemical releases to air, water, and land.
Superfund: Superfund sites represent the most severe contamination in the federal system.
Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.
Commission professional soil testing before any food production (test for heavy metals, VOCs, and SVOCs).
Check your specific parcel in Lithonia
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 Lithonia average
Your land is one point inside Lithonia
Everything above resolves to Lithonia as a whole — one PHZM band, read across 594 acres, with hard-freeze dates borrowed from DeKalb 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 Lithonia Average
Lithonia Average
- ●USDA Zones 8a, averaged across Lithonia
- ●One soil character for all of Lithonia
- ●Frost dates read at Lithonia's scale: Mar 5 to Nov 29
YOUR Parcel
- ✓Your exact zone, not Lithonia's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Lithonia
Pull a site-specific report for your exact address in Lithonia, Georgia — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Lithonia averages can't show:
We read public map data around Lithonia — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Lithonia average
How we know this about Lithonia
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 DeKalb 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 Lithonia
When does frost risk typically end in Lithonia?
The last hard freeze (28°F) in Lithonia typically lands around Mar 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 Mar 26.
When is the first frost in Lithonia?
The first hard freeze (28°F) in Lithonia typically arrives around Nov 29, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 15, so the watching starts about Oct 30 — about 269 days after the spring freeze cleared.
How long is the growing season in Lithonia?
Measured between 28°F hard freezes, Lithonia sees about 269 frost-free days — roughly Mar 5 through Nov 29, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 26 to Nov 15, about 234 days.
Is the soil safe to grow vegetables in Lithonia?
The federal record around Lithonia is a meaningful one — 885 documented sites, mostly Underground Storage Tanks entries (591), the nearest Superfund 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 Lithonia?
From about Oct 30 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 Nov 29 (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 Nov 29. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Lithonia's scale — its 8a band and its 269-day season. Your yard writes its own version of Lithonia'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 Lithonia’s own scale
5 of the readings below were taken at Lithonia's own scale — the 594 acres it covers and 885 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Lithonia's own USDA hardiness band, zones 8aUSDA PHZM 2023
- 885 documented contamination sites on the federal record near Lithonia, the closest Superfund record about 0.2 miles out from the town centreFederal environmental registers
- Lithonia's boundary and the 594 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~269-day seasonGrowable Ground crop-matching engine
- The ecoregion at Lithonia's own centroid, the PiedmontUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Lithonia has no normal of its own, so its county's is the closest measured readfrom DeKalb County
- Soil character — no town-scale survey exists, so Lithonia's 594 acres read through its county's SSURGO summaryfrom DeKalb County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom DeKalb County
- The growing challenges every Georgia grower plans around — written at state scale, so they stay on the state guidefrom Georgia
- Butterfly and beetle records, and the farmland pesticide estimate — all published county-widefrom DeKalb County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Lithonia's 594 acreswhy one lot differs from the next →
- Which side of Lithonia you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 594 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Superfund 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 Lithonia-wide figureread your own land →
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