Harlem, Georgia, sits in USDA hardiness zone 8b — a zone band wide enough that plant choice, not possibility, is the interesting question.
On paper, cabbage, fig, california poppy, and collard greens all suit these conditions — on the ground, soil, sun, and drainage make the final call.
Even in Harlem, 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 Harlem 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 Harlem — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Harlem — the short answer
Harlem, Georgia: USDA zone 8b, about 262 days between hard freezes, across 4K acres of city.
- USDA zone
- 8b
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 8
- Columbia County normal — NOAA 1991–2020, nearest to this town
- First hard freeze (28°F)
- Nov 25
- Columbia County normal — NOAA 1991–2020, nearest to this town
- Days between freezes
- ~262
- Columbia County normal — NOAA 1991–2020, nearest to this town
- City area
- 4K 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 Columbia County’s — the closest measured record, labelled as such rather than passed off as local.
Hardiness Zone Range
Zone 8b is Harlem's average, not your lot's — a low corner or a tree line moves it. Against Harlem's 262-day season, see what your own ground reads.
Soil varies lot by lot — soil types explained.
What this means for growing in Harlem
Each reading below is measured for Harlem itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Season length
From county recordsHarlem runs about 262 days between hard freezes (read from Columbia County, the closest normal to Harlem) — 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
MeasuredHarlem sits in USDA hardiness zone 8b.
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 Harlem is in
Harlem sits in the Piedmont — EPA Level III, inside the wider Eastern Temperate Forests. That is read at Harlem's own centroid rather than borrowed from Columbia County.
What Grows in Harlem
Every plant below cleared Harlem's own zone 8b and its 262-day season. Each card opens that plant's Georgia profile. How we score.
Is it too late to plant in Harlem?
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 Feb 8; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 8 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 25 — 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 Harlem
Closest first, within ~10 miles of Harlem. Listing isn't leaking, and distance isn't exposure.
- HARLEM MIDDLE SCHOOLUnderground Storage Tanks · 0.9 mi
- GA DOT #10207/COLUMBIA MAINT HQUnderground Storage Tanks · 1.2 mi
- JERNIGANS GROCERYUnderground Storage Tanks · 1.2 mi
- 27BB01Nitrate · 1.3 mi
- WATTS SERVICE STATIONUnderground Storage Tanks · 1.3 mi
- FAST FARE GA-513/ZIPPY MART #430Underground Storage Tanks · 1.4 mi
- HARLEM MINI FOODUnderground Storage Tanks · 1.4 mi
- CULPEPPER MOTOR CO INCUnderground Storage Tanks · 1.4 mi
- HARLEM EXPRESSUnderground Storage Tanks · 1.5 mi
- ROBERTS CLEANERSUnderground Storage Tanks · 1.5 mi
- JET FOOD STORE #9Underground Storage Tanks · 1.5 mi
- OVERTON SHELLUnderground Storage Tanks · 1.7 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Harlem'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 Harlem.
Total Sites
118
within ~10 miles of Harlem
Risk Level
Elevated
Highest-severity
1 Superfund site (none NPL-listed)
Sources Checked
within ~10 miles of Harlem
Severity Distribution
within ~10 miles of Harlem
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 Harlem
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 Harlem average
Your land is one point inside Harlem
Everything above resolves to Harlem as a whole — one PHZM band, read across 4K acres, with hard-freeze dates borrowed from Columbia 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 Harlem Average
Harlem Average
- ●USDA Zones 8b, averaged across Harlem
- ●One soil character for all of Harlem
- ●Frost dates read at Harlem's scale: Mar 8 to Nov 25
YOUR Parcel
- ✓Your exact zone, not Harlem's 8b
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your specific parcel in Harlem
Pull a site-specific report for your exact address in Harlem, Georgia — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Harlem averages can't show:
We read public map data around Harlem — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Harlem average
How we know this about Harlem
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 Columbia 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 Harlem
When does frost risk typically end in Harlem?
The last hard freeze (28°F) in Harlem typically lands around Mar 8, 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 29.
When is the first frost in Harlem?
The first hard freeze (28°F) in Harlem typically arrives around Nov 25, per NOAA 1991–2020 climate normals — the point tender summer crops finish. Lighter frosts run ahead of it, near Nov 11, so the watching starts about Oct 26 — about 262 days after the spring freeze cleared.
How long is the growing season in Harlem?
Measured between 28°F hard freezes, Harlem sees about 262 frost-free days — roughly Mar 8 through Nov 25, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Mar 29 to Nov 11, about 227 days.
Is the soil safe to grow vegetables in Harlem?
The federal record around Harlem is a meaningful one — 118 documented sites, mostly Underground Storage Tanks entries (70), the nearest Underground Storage Tanks record about 0.9 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 Harlem?
From about Oct 26 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 25 (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 25. Hardy greens and roots shrug off light frost and sweeten after it — leave them in.
Everything above is measured at Harlem's scale — its 8b band and its 262-day season. Your yard writes its own version of Harlem'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 Harlem’s own scale
5 of the readings below were taken at Harlem's own scale — the 4,216 acres it covers and 118 documented sites around it; 5 are borrowed from a wider read, named and linked below.
Measured here
- Harlem's own USDA hardiness band, zones 8bUSDA PHZM 2023
- 118 documented contamination sites on the federal record near Harlem, the closest Underground Storage Tanks record about 0.9 miles out from the town centreFederal environmental registers
- Harlem's boundary and the 4,216 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8b and a ~262-day seasonGrowable Ground crop-matching engine
- The ecoregion at Harlem's own centroid, the PiedmontUS EPA Level III Ecoregions
Inherited from a wider read
- The 28°F hard-freeze dates — Harlem has no normal of its own, so its county's is the closest measured readfrom Columbia County
- Soil character — no town-scale survey exists, so Harlem's 4,216 acres read through its county's SSURGO summaryfrom Columbia County
- Growing-degree days and winter chill — measured county-wide only, so the county page carries themfrom Columbia 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 Columbia County
What this page can’t tell you
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Harlem's 4,216 acreswhy one lot differs from the next →
- Which side of Harlem you're on — a low spot frosts first and a south wall warms early, and one normal is being asked to speak for all 4,216 acresreading your own microclimate →
- How close that record sits to YOUR lot — the closest Underground Storage Tanks record about 0.9 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 Harlem-wide figureread your own land →
More in Georgia
Growing region