Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Planting zone for Brunswick, GA

Brunswick, GA is in USDA zone 9a across its 5 ZIP codes. The median last spring frost is February 8 and the first fall frost December 25.

Brunswick on the zone map

Outlined: its 4 ZIP code areas · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zone9a20 to 25 °F
ZIP codes5
Last frostFeb 8
First frostDec 25
Growing season314 days

9a 5 ZIPs

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Brunswick, GA…

Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates in Brunswick, GA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostFebruary 8median — 50% chance of a later frost
Safe for tender plantsMarch 10only 10% chance of frost after
First fall frostDecember 25median — 10% chance by Nov 26
Growing season314 daysfrost-free, median

A hard freeze (28 °F) usually ends around January 24 and returns around January 6.

From the NOAA station Brunswick, GA, elevation 13 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in Brunswick

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Dec 28 – Jan 11
SpinachSow outdoors · Dec 28 – Jan 18
Broccoli, cabbageStart indoors · Nov 30 – Dec 14
Broccoli, cabbageTransplant · Jan 18 – Feb 1
Onion setsPlant outdoors · Jan 11 – Jan 25
PotatoesPlant outdoors · Jan 18 – Feb 1
LettuceSow outdoors · Jan 11 – Jan 25
Carrots, beetsSow outdoors · Jan 18 – Feb 1
TomatoesStart indoors · Dec 14 – Dec 28
TomatoesTransplant · Feb 15 – Mar 1
Peppers, eggplantStart indoors · Nov 30 – Dec 14
Peppers, eggplantTransplant · Feb 22 – Mar 8
BeansSow outdoors · Feb 15 – Mar 1
Sweet cornSow outdoors · Feb 15 – Mar 1
Cucumbers, squashSow outdoors · Feb 15 – Mar 1
Fall lettuce, spinachSow outdoors · Oct 30 – Nov 13
GarlicPlant cloves · Dec 11 – Jan 15
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Feb 8) and first fall frost (Dec 25) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 31524 came on Jan 27 — about the same time as the 1991–2020 average (Jan 26).

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Native plants for zone 9a in Georgia

603 plants native to the lower 48 states, recorded in Georgia, and rated by the USDA to survive 20 °F or colder — the bottom of zone 9a. Each links to its USDA PLANTS profile.

Trees 90

American basswood100 ft · blooms late spring · low shade tolerance · to −46 °FAmerican beech80 ft · blooms mid spring · low shade tolerance · to −44 °FAmerican chestnut115 ft · blooms early summer · high shade tolerance · to −33 °FAmerican elm120 ft · blooms early spring · medium shade tolerance · to −46 °FAmerican sycamore100 ft · blooms spring · medium shade tolerance · to −34 °FAtlantic white cedar50 ft · blooms spring · medium shade tolerance · to −36 °F

Shrubs 146

Allegheny serviceberry35 ft · blooms early spring · low shade tolerance · to −38 °Faloe yucca15 ft · blooms early summer · medium shade tolerance · to −1 °Falternateleaf dogwood25 ft · blooms mid spring · low shade tolerance · to −47 °FAmerican beautyberry6 ft · blooms early summer · medium shade tolerance · to −8 °FAmerican hazelnut10 ft · blooms spring · medium shade tolerance · to −33 °FAmerican holly40 ft · blooms mid spring · low shade tolerance · to −20 °F

Wildflowers & perennials 176

American bur-reed3 ft · blooms indeterminate · medium shade tolerance · to −33 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °FAmerican lotus3 ft · blooms mid summer · high shade tolerance · to −36 °FAmerican pokeweed7 ft · blooms mid summer · low shade tolerance · to −33 °FAmerican spongeplant0.5 ft · blooms mid spring · high shade tolerance · to −24 °FAmerican water horehound1.8 ft · blooms early summer · low shade tolerance · to −38 °F

Grasses 164

American cupscale3 ft · blooms early summer · high shade tolerance · to −18 °Fautumn bluegrass1.5 ft · blooms late spring · medium shade tolerance · to −8 °Fawlfruit sedge4 ft · blooms mid spring · low shade tolerance · to −38 °Fbeaked spikerush3 ft · blooms late spring · high shade tolerance · to −28 °Fbig bluestem6 ft · blooms summer · high shade tolerance · to −46 °Fbig cordgrass8 ft · blooms spring · high shade tolerance · to −3 °F

Vines 13

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °FAmerican wisteria50 ft · blooms spring · low shade tolerance · to −3 °Fcatbird grape30 ft · blooms late spring · medium shade tolerance · to −13 °Fcupseed30 ft · blooms late spring · low shade tolerance · to −3 °Fdevil's darning needles15 ft · blooms mid summer · medium shade tolerance · to −38 °Ffrost grape83 ft · blooms late spring · medium shade tolerance · to −23 °F

Source: USDA, NRCS. 2026. The PLANTS Database (plants.usda.gov), National Plant Data Team — state distribution, native status and the “Temperature, Minimum” characteristic. Check light, moisture and soil needs before buying; local nurseries and your state native plant society can confirm what thrives in Brunswick, GA.

Soil in Brunswick, GA

The soil mapped at the center of ZIP 31524 is Mandarin — fine sand, somewhat poorly drained.

TextureFine sanddrains and warms fast; dries out and needs more feeding
pH4.2strongly acidic; most vegetables like 6.0–7.0
DrainageSomewhat poorly drainedconsider raised beds
Organic matter1.25%low — add compost
Hydrologic groupAwater soaks in fast
Farmland classNot prime farmlandUSDA classification

Map unit: Mandarin fine sand, 0 to 2 percent slopes.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 31524; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Brunswick, GA

Summer high90 °Faverage high, July
Winter low44 °Faverage low, January
Hot days73days a year at 90 °F or more
Freezing nights9nights a year at 32 °F or less
Growing degree days6,955base 50 °F — the season’s usable heat
Longest day14 h 11 mindaylight on June 21
Shortest day10 h 07 mindaylight on December 21
Onions to growShort-daysummer days stay under about 14 h 20 min, so long-day varieties won’t bulb
Precipitation50.3 inper year, rain and melted snow

Average high and low, by month

30°40°50°60°70°80°90°100°32 °FJanuary: average high 61 °F, low 44 °F 61°44° JanFebruary: average high 64 °F, low 47 °F 64°47° FebMarch: average high 70 °F, low 53 °F 70°53° MarApril: average high 76 °F, low 59 °F 76°59° AprMay: average high 83 °F, low 67 °F 83°67° MayJune: average high 88 °F, low 73 °F 88°73° JunJuly: average high 90 °F, low 75 °F 90°75° JulAugust: average high 89 °F, low 75 °F 89°75° AugSeptember: average high 84 °F, low 72 °F 84°72° SepOctober: average high 78 °F, low 63 °F 78°63° OctNovember: average high 69 °F, low 53 °F 69°53° NovDecember: average high 63 °F, low 47 °F 63°47° Dec

Precipitation by month inches

0″2″4″6″January: 3.54 in precipitation 3.5 JanFebruary: 3.06 in precipitation 3.1 FebMarch: 3.80 in precipitation 3.8 MarApril: 3.07 in precipitation 3.1 AprMay: 3.04 in precipitation 3.0 MayJune: 6.35 in precipitation 6.3 JunJuly: 4.94 in precipitation 4.9 JulAugust: 6.95 in precipitation 7.0 AugSeptember: 6.26 in precipitation 6.3 SepOctober: 4.60 in precipitation 4.6 OctNovember: 2.03 in precipitation 2.0 NovDecember: 2.65 in precipitation 2.6 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Brunswick, GA (6 mi away); precipitation: Brunswick, GA (6 mi away). Daylight is calculated from latitude.

ZIP codes in Brunswick

315209a
20 to 25 °F
315219a
20 to 25 °F
315239a
20 to 25 °F
315249a
20 to 25 °F
315259a
20 to 25 °F

Georgia planting zones →

Questions about Brunswick

What planting zone is Brunswick, GA?

Brunswick, GA is in USDA hardiness zone 9a on the 2023 map (9a: 20 to 25 °F).

When is the last frost in Brunswick, GA?

The median last spring frost is February 8 and the median first fall frost is December 25 (NOAA 1991–2020 normals, Brunswick station).

When can I plant a garden in Brunswick, GA?

Cool-season crops like peas and spinach go in around Dec 28 – Jan 18; tomatoes, peppers, beans and squash after about Feb 15, once frost risk has passed.

What kind of onions grow in Brunswick, GA?

Short-day onions: the longest day is 14 h 11 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

How much rain and snow does Brunswick, GA get?

About 50.3 inches of precipitation a year (NOAA 1991–2020 normals).