Fairfield County, in South Carolina, sits in USDA hardiness zone 8a — a zone band wide enough that plant choice, not possibility, is the interesting question.
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.
Fairfield County lies within the Midlands (Columbia) and the Piedmont — a regional growing area with its own character.
Grounded in USDA PHZM 2023 · Growable Ground suitability scoring · NOAA 1991–2020 Climate Normals
Fairfield County holds more than one microclimate.
Soils and elevations shift across Fairfield County, so your frost dates and drainage aren't the county average. 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 Fairfield County — soil, climate, flood, and parcel records. How we handle your address.
No card required · your full report in seconds
Fairfield County — the short answer
Fairfield County, South Carolina: USDA zone 8a, about 260 days between hard freezes, across 439K acres.
- USDA zone
- 8a
- USDA PHZM 2023
- Last hard freeze (28°F)
- Mar 11
- NOAA 1991–2020 Climate Normals, 28°F
- First hard freeze (28°F)
- Nov 26
- NOAA 1991–2020 Climate Normals, 28°F
- Days between freezes
- ~260
- NOAA 1991–2020 Climate Normals, 28°F
- County area
- 439K acres
- US Census TIGER/Line 2025
Every figure names the dataset it came from. Hard-freeze dates are county 28°F normals: light frosts run a few weeks past them, and tender transplants usually wait 2–3 weeks after the last hard freeze.
Hardiness Zone Range
Zone 8a is Fairfield County's average, not your lot's — a low corner or a tree line moves it. Against Fairfield County's 260-day season, see what your own ground reads.
Heat and winter chill in Fairfield County
Across a year, Fairfield County accumulates about 5,021 growing degree days above 50°F, about 127 fewer than the middle South Carolina county — ahead of 17 of South Carolina’s 46 counties. Degree days are the heat a crop actually gets to work with — more of them is more room to ripen a long-season crop before the freeze closes the window.
Winter banks about 1,443 hours below 45°F, 81 more than the South Carolina middle of 1,362. Chill is what tells a fruit tree its dormancy is over, and it is set by climate rather than by anything you can build.
Grounded in PRISM Climate Group, Oregon State University — 1991–2020 monthly normals
Soil in Fairfield County
Across Fairfield County, the ground is predominantly Ultisols, where Cecil, Winnsboro, and Pacolet are the most extensive named soil series. The soil is generally well drained with a sandy loam surface. Topsoil pH runs about 5.3–5.8, strongly acidic. Rainfall drains through hydrologic group B soils.
Soil order
Ultisols
Drainage
Well drained
Prime farmland
13%
Hydric soils
0%
Soil still varies lot by lot — soil types explained.
How the ground varies across Fairfield County
The USDA soil survey maps 85% of Fairfield County as well drained — but another 14% drains differently: 11% moderately well drained, 3% somewhat poorly drained.
Cecil is the most extensive named soil at 12% of mapped acres, then Winnsboro (10%) and Pacolet (10%).
Which of them your own lot sits on is a parcel question, not a county one. Check your address for the survey at your boundary.
What this means for growing in Fairfield County
Each reading below is measured for Fairfield County itself — here is what it means for a garden here, and the move an experienced grower makes about it.
Drainage
MeasuredThe dominant soils across Fairfield County are well drained, in hydrologic group B — ground that drains quickly.
The upside is soil you can work early in spring and roots that never drown; the cost is that fast-draining ground dries out fast and leaches nutrients away before plants can use them.
Work in compost and mulch to hold moisture and feed, and water more often in short doses than deep and rarely.
USDA NRCS SSURGO
Surface pH
MeasuredTopsoil across Fairfield County runs about pH 5.3–5.8, on the acidic side.
Blueberries, potatoes, and rhododendrons thrive in it, but most vegetables start locking out nutrients below about pH 6.0 and grow pale and stunted no matter how much you feed them.
A measured lime application raises pH for the crops that need it — but test first, because the right rate depends on your own soil, not the county average.
USDA NRCS SSURGO
Season length
MeasuredFairfield County runs about 260 days between hard freezes — 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
MeasuredFairfield County 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 Fairfield County is in
Fairfield County sits in the Piedmont — EPA Level III, inside the wider Eastern Temperate Forests. One consistent ecological setting across the whole county.
What Grows in Fairfield County
We scored all 1,086 plants against Fairfield County's own USDA zone 8a and its own 260-day season between hard freezes, using the same matching engine that runs a full parcel report. These cleared both. Sun, soil pH and drainage vary lot by lot — those are the parcel questions below. Each card opens that plant's South Carolina profile.
Is it too late to plant in Fairfield County?
Usually not — gardeners here simply switch what goes in the ground as the season moves. Cool-season crops can go in from around Feb 11; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Mar 11 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Nov 26 — long-season crops need about 90 days of runway, quick greens only 30. With almost year-round growing weather, timing is about heat and rainfall more than frost — some bench is always in play.
Documented around Fairfield County
Survey cells within 31 miles of Fairfield County checked for spotted lanternfly, none carrying a detection — a surveyed negative, not an absence of looking. Nearest documented record 78 miles off. What to watch for.
- monarch butterfly1 documented records
Sighting records, so they follow observers as much as insects.
What gets applied to farmland in Fairfield County
USGS estimates 1,952 lb of 2,4-d on Fairfield County farmland in 2019, its largest by weight, ahead of Glyphosate (412 lb) and Atrazine (301 lb).
Farmland across the whole county, not any one lot. Check your address for the site-by-site record.
Safe to Grow Here?
What the federal record shows across Fairfield County — and how to grow with it.
We checked the federal record across Fairfield County — 157 documented sites across 6 of the 9 source types we track.
The most significant on record: 10 Toxics Release Inventory facilities. Active industrial facilities reporting chemical releases to air, water, and land.
There's a meaningful federal record across Fairfield County — worth a look before you plant food, not a reason to hold back from growing. Proximity to a documented site is information, not a diagnosis of any one yard. A soil test before new food beds is the sensible precaution here, and the map shows exactly which sites sit where, so you can see what's actually near you.
Sources: EPA, USGS — 1.8M documented sites tracked nationwide across 9 federal source types.
What's on the federal record near Fairfield County
Closest first, across Fairfield County. Listing isn't leaking, and distance isn't exposure.
- GRAND CENTRAL STATIONUnderground Storage Tanks · 1800 ft
- WINNSBORO CREW QUARTERSUnderground Storage Tanks · 0.6 mi
- FAIRFIELD COUNTY PUBLIC WORKSUnderground Storage Tanks · 1.5 mi
- DGH FOOD AND GAS DBA AMPM FOOD & DELIUnderground Storage Tanks · 1.5 mi
- CATAWBA TIMBER COUnderground Storage Tanks · 1.8 mi
- FAIRFIELD ELECTRIC COOPERATIVE INCUnderground Storage Tanks · 1.8 mi
- EXPRESS LANE 4Underground Storage Tanks · 1.9 mi
- HON COMPANY-CLOSEDBrownfields · 2.0 mi
- HON COMPANY-CLOSEDToxics Release Inventory · 2.0 mi
- THOMPSON EXPRESSUnderground Storage Tanks · 2.0 mi
- FAIRFIELD COUNTY SCHOOLSUnderground Storage Tanks · 2.1 mi
- HOPE PETTY CHEV OLDSBrownfields · 2.1 mi
6 more sites are on the record inside the same radius. See them on the map
Measured from Fairfield County'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 Fairfield County.
Total Sites
157
across Fairfield County
Risk Level
Elevated
Highest-severity
10 Toxics Release Inventory facilities
Sources Checked
across Fairfield County
Severity Distribution
across Fairfield County
Highest-Severity Sites
A note from Gnorman
What an experienced grower watches for around here
In and around Fairfield County, two things run higher than the national average across Fairfield County — PFAS (3 sites) and Underground Storage Tanks (113 sites). That's not a problem with your land — it's information about it.
PFAS: PFAS (per- and polyfluoroalkyl substances) are called "forever chemicals" because they do not biodegrade.
Underground Storage Tanks: Underground storage tanks are the single most common source of soil contamination near homes and gardens.
Test irrigation water source — this is the primary pathway for PFAS to reach garden crops.
Use raised beds with imported soil — this eliminates the primary soil-contact pathway.
Check your specific parcel in Fairfield County
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 Fairfield County average
Your land is one point inside Fairfield County
Everything above resolves to Fairfield County as a whole — one PHZM band and one county frost record, read across 439K acres. 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 county 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 county average.
Your Lot vs the Fairfield County Average
Fairfield County Average
- ●USDA Zones 8a, averaged across Fairfield County
- ●One soil character for all of Fairfield County
- ●Frost dates read at Fairfield County's scale: Mar 11 to Nov 26
YOUR Parcel
- ✓Your exact zone, not Fairfield County's 8a
- ✓Your SSURGO soil type & pH
- ✓Your sun exposure, cast in 3D
See MY Growing Report
Read your parcel in Fairfield County
Pull a site-specific report for your exact address in Fairfield County, South Carolina — soil, sun, drainage, frost risk, and scored plant recommendations.
Three things about your lot that Fairfield County averages can't show:
We read public map data around Fairfield County — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Fairfield County average
How we know this about Fairfield County
The datasets: hardiness from the USDA ARS Plant Hardiness Zone Map 2023, read at county grain; hard-freeze dates from NOAA 1991–2020 28°F normals at this county’s own record where one resolves, and the labelled statewide window where none does; soils from the USDA NRCS SSURGO survey, area-weighted across the county’s own map units; boundaries and acreage from US Census TIGER/Line 2025; the contamination and pesticide records from the federal sources named in their beats above. Where Fairfield County carries no record of its own, the figure is inherited and labelled — the resolution ledger below names each.
Common questions about Fairfield County
When does frost risk typically end in Fairfield County?
The last hard freeze (28°F) in Fairfield County typically lands around Mar 11, 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 Apr 1.
How long is the growing season in Fairfield County?
Measured between 28°F hard freezes, Fairfield County sees about 260 frost-free days — roughly Mar 11 through Nov 26, per NOAA 1991–2020 climate normals. Tender crops work a shorter one: nearer Apr 1 to Nov 12, about 225 days.
Is the soil safe to grow vegetables in Fairfield County?
The federal record around Fairfield County is a meaningful one — 157 documented sites, mostly Underground Storage Tanks entries (113), the nearest Underground Storage Tanks record about 0.3 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.
Everything above is measured at Fairfield County's scale — its 8a band and its 260-day season. Your yard writes its own version of Fairfield County's numbers: we read soil, sun, drainage and frost at your exact address. Try it for 14 days — no card required.
Will It Grow Here?
Zone fit is the first question — each answer below reads South Carolina's frost window, season length, and soil profile against the plant's real requirements.
What this page reads at Fairfield County’s own scale
9 of the readings below were taken at Fairfield County's own scale — its own ~260-day span between 28°F freezes, the 3 most extensive soil series mapped here and 157 documented sites inside its boundary; one is borrowed from a wider read, named and linked below.
Measured here
- Fairfield County's own USDA hardiness band, zones 8aUSDA PHZM 2023
- Fairfield County's own 28°F hard-freeze dates and its ~260-day span between themNOAA 1991–2020 Climate Normals
- The soil order, drainage, surface pH, and the 3 most extensive named soil series mapped in Fairfield CountyUSDA NRCS SSURGO
- 157 documented contamination sites inside the county boundary, distance-sorted from its center — the closest Underground Storage Tanks record about 0.3 miles outFederal environmental registers
- Fairfield County's boundary and the 439,236 acres inside itUS Census TIGER/Line 2025
- Which of 1,086 plants clear zones 8a and a ~260-day seasonGrowable Ground crop-matching engine
- Fairfield County sitting wholly inside the PiedmontUS EPA Level III Ecoregions
- Open occurrence records documented in Fairfield County for a tracked speciesGBIF derived datasets (CC0 / CC BY 4.0)
- Which agricultural compounds go onto Fairfield County farmland, and roughly how muchUSGS NAWQA EPest county estimates
Inherited from a wider read
- The growing challenges every South Carolina grower plans around — written at state scale, so they stay on the state guidefrom South Carolina
What this page can’t tell you
- How the season shifts across Fairfield County — the ~260 days above is one reading at its centre; the 12 towns below each carry their owntowns in this county →
- The soil pH, drainage, sun hours, and frost pockets on any one lot among Fairfield County's 439,236 acreswhy one lot differs from the next →
- Which of those 157 documented sites actually reaches your soil — that needs your address, the wind, and the groundwater directionhow we read the record →
- Where cold air settles, which slopes face the sun, and which way the wind runs on your own ground — none of it survives being averaged over Fairfield Countyread your own land →