What Grows in Gilmer County, Georgia

USDA Zones 7b · 273K acres

Gilmer County, in Georgia, sits in USDA hardiness zone 7b — a range where zone-matched perennials and frost-aware annual timing set what succeeds.

Crops well matched to these conditions include peach, vidalia onion, pecan, and tomato — though what thrives on any one site still turns on its specific soil, sun, and drainage.

Gilmer County lies within the Blue Ridge and Appalachia — a regional growing area with its own character.

Grounded in USDA PHZM 2023 · Growable Ground suitability scoring · NOAA 1991–2020 Climate Normals

Score your parcel · free

Gilmer County holds more than one microclimate.

Soils and elevations shift across Gilmer County, so your frost dates and drainage aren't the county average. Enter your address and we'll score 1,112 plants against your land's actual soil, sun, and frost.

We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.

No card required · your full report in seconds

Quick Facts

USDA Zones

7b

Last Hard Freeze (28°F)

Feb 19

County normal — light frosts run a few weeks later

First Hard Freeze (28°F)

Dec 12

County normal — light frosts arrive a few weeks earlier

County Area

273K acres

Hardiness Zone Range

7b7b
3a (Cold)13b (Hot)

Zone maps are averages across Gilmer County. Your yard's slope, trees, and frost pockets shift what actually grows — see your land's exact reading.

Soil in Gilmer County

Across Gilmer County, the ground is predominantly Ultisols, where Tallapoosa, Talladega, and Ashe are the most extensive named soil series. The soil is generally well drained with a gravelly sandy loam surface. Topsoil pH runs about 4.8–5.3, very strongly acidic. Rainfall drains through hydrologic group D soils.

Soil order

Ultisols

Drainage

Well drained

Prime farmland

3%

Hydric soils

0%

Soil still varies lot by lot — soil types explained.

Is it too late to plant in Gilmer County?

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 22; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 19 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 12 — 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.

Growing Challenges in Georgia

What an experienced grower plans around here — each one has a move.

Heavy red Piedmont clay is difficult to work and drains poorly

Compost and patience open red clay up — or a raised bed gets you growing today while the ground improves underneath.

High humidity drives fungal diseases in summer

Morning watering at the base, generous spacing, and resistant varieties — the humid-South disease playbook, straight from your extension.

Fire ants are a persistent pest in gardens across the state

Bait mounds early in the season and keep bed edges mulched — your extension office runs the current two-step control program.

Summer heat (90-100F) can stress cool-season crops by May

Run cool-season crops in the fall-through-spring windows and let summer belong to the heat-lovers.

For cultivar selection, pest pressure, and planting-time guidance specific to Georgia, the UGA Cooperative Extension is the authoritative local source.

Safe to Grow Here?

What the federal record shows across Gilmer County — and how to grow with it.

Federal record: Elevated

We checked the federal record across Gilmer County29 documented sites across 5 of the 9 source types we track.

The most significant on record: 2 Superfund sites. Sites tracked in EPA's Superfund program — from assessment-stage CERCLIS entries to confirmed National Priorities List cleanup sites.

There's a meaningful federal record across Gilmer 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, USGS1.8M documented sites tracked nationwide across 9 federal source types.

Environmental Intelligence

Understanding what's nearby helps you make informed decisions about where and how to grow.

Total Sites

29

across Gilmer County

Risk Level

Elevated

Highest-severity

2 Superfund sites

Severity Distribution

across Gilmer County

High2Moderate17Low10

Highest-Severity Sites

Carter'S Lake Drum
Superfund · Superfund (Non-NPL)
East Ellijay Orphaned Drum
Superfund · Superfund (Non-NPL)
10ll01
Nitrate Monitoring · Well
10ll01
Nitrate Monitoring · Well
10mm01
Nitrate Monitoring · Well

A note from Gnorman

What an experienced grower watches for around here

In and around Gilmer County, two things run higher than the national average — Toxic Release Inventory (9 sites) and Nitrate (8 sites). It's not cause for alarm — it's worth knowing, and there's a sensible way to grow around it.

Toxic Release Inventory: TRI facilities report annual chemical releases to air, water, and land.

Nitrate: Nitrate contamination primarily comes from agricultural fertilizer runoff and failing septic systems.

Check prevailing wind direction — downwind parcels face higher exposure than upwind or crosswind locations.

Test well water for nitrate if you rely on a private well for irrigation (EPA standard: 10 mg/L).

Free Report

Check your specific parcel in Gilmer County

Get exact proximity distances to contamination sources for your specific parcel — plus soil, sun, drainage, and 1,112 plant recommendations.

Three things about your exact spot that zone averages miss:

Your soil pHYour frost-free daysYour sun & shade

We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.

25+ data sources analyzed in seconds

Your Specific Parcel Matters

Gilmer County Average

  • USDA Zones 7b
  • Generic soil type for the area
  • State-average frost dates

YOUR Parcel

  • Your exact hardiness zone
  • Your SSURGO soil type & pH
  • Your sun exposure, cast in 3D

See MY Growing Report

Free Report

Read your parcel in Gilmer County

Pull a site-specific report for your exact address in Gilmer County, Georgia — soil, sun, drainage, frost risk, and scored plant recommendations.

Three things about your exact spot that zone averages miss:

Your soil pHYour frost-free daysYour sun & shade

We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.

25+ data sources analyzed in seconds

Key Growing Facts for Gilmer County, Georgia

  • USDA Hardiness Zones: 7b (USDA PHZM 2023)
  • Last Hard Freeze (28°F): Feb 19 (county normal, NOAA 1991–2020 Climate Normals — light frosts can follow for a few weeks)
  • First Hard Freeze (28°F): Dec 12 (county normal, NOAA 1991–2020 Climate Normals — light frosts can arrive a few weeks earlier)
  • Days Between Hard Freezes: ~296 (county normal, NOAA 1991–2020 Climate Normals)
  • County Land Area: 273K acres (US Census TIGER 2025)

Zone data: USDA ARS Plant Hardiness Zone Map 2023. Climate data: NOAA NCEI. County boundaries: US Census TIGER/Line 2025.

Frost dates here are the Gilmer County average. Low spots and tree cover move them by days on any one yard — see your exact frost windows.

Frequently Asked Questions

What hardiness zone is Gilmer County, Georgia?

Gilmer County sits in USDA hardiness zone 7b, per the USDA Plant Hardiness Zone Map 2023. Zones reflect average annual extreme minimum temperatures from 1991–2020 weather data.

Is it too late to plant in Gilmer County?

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 22; tender transplants wait until two to three weeks after the last 28°F hard freeze, which lands near Feb 19 (NOAA 1991–2020 climate normals); and from midsummer, planting counts back from the first fall freeze around Dec 12 — 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.

When does frost risk typically end in Gilmer County?

The last hard freeze (28°F) in Gilmer County typically lands around Feb 19, per NOAA 1991–2020 climate normals — an earlier marker than the light-frost dates many planting charts quote. That marks the hard freeze, not the last light frost — light frosts can still bite for a few more weeks, so tender transplants usually wait another 2–3 weeks.

How long is the growing season in Gilmer County?

Measured between 28°F hard freezes, Gilmer County sees about 296 frost-free days — roughly Feb 19 through Dec 12, per NOAA 1991–2020 climate normals. Tender crops get a somewhat shorter practical window, since lighter frosts reach a few weeks past the hard-freeze dates on both ends.

What vegetables grow in Gilmer County?

Gilmer County's zone 7b supports a wide range — strong performers include Peach, Vidalia Onion, Pecan, Tomato, and Blueberry. What actually takes on any one site comes down to its soil, sun, and drainage, and we score each plant against the real conditions at your address.

Which hardiness zone is Gilmer County, really?

Officially, Gilmer County sits in USDA zone 7b (USDA PHZM 2023) — but a zone is a 30-year average of winter's coldest night across an area, and it can't see any one yard. A south-facing slope, a tree line, or a low frost pocket can shift a single site by half a zone either way, which is why neighboring gardeners often quote different numbers. We read the conditions at your exact address — soil, sun, slope, and frost — and score 1,112 plants against what's actually there.

Is the soil safe to grow vegetables in Gilmer County?

The federal record around Gilmer County is a meaningful one — 29 documented sites — 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.

Just moved to Gilmer County — what should I know before planting?

Start with three facts. Gilmer County sits in USDA zone 7b, which sets what survives winter; the last 28°F hard freeze typically clears around Feb 19, with about 296 frost-free days to work with (NOAA 1991–2020 climate normals); and 29 documented sites sit on the federal record here, so a soil test before food beds is the smart first step. From there, matching plants to your actual soil and sun is the fun part.

Everything on this page is a Gilmer County average. Your yard writes its own version — we read soil, sun, drainage, and frost at your exact address. Try it for 14 days — no card required.