Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated Oct 29, 2026

Planting zone for 31548 — Kingsland, GA

ZIP code 31548 (Kingsland, Camden County) is in USDA zone 9a: the coldest winter night averages 20 to 25 °F. The median last spring frost is March 14 and the first fall frost November 25.

Where ZIP 31548 is

Outlined: the ZIP code area · 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

Coldest night−6.7 to −3.9 °C

Last frostMar 14

First frostNov 25

2012 zone9a

Same zone as on the 2012 map. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 9a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Kingsland, 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 Kingsland, GA

JanFebMarAprMayJunJulAugSepOctNovDec

Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free

Last spring frostMarch 14median — 50% chance of a later frost

Safe for tender plantsApril 6only 10% chance of frost after

First fall frostNovember 25median — 10% chance by Nov 5

Growing season257 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 21 and returns around December 12.

From the NOAA station Woodbine, GA — 11 miles away, elevation 16 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 31548

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Jan 31 – Feb 14

SpinachSow outdoors · Jan 31 – Feb 21

Broccoli, cabbageStart indoors · Jan 3 – Jan 17

Broccoli, cabbageTransplant · Feb 21 – Mar 7

Onion setsPlant outdoors · Feb 14 – Feb 28

PotatoesPlant outdoors · Feb 21 – Mar 7

LettuceSow outdoors · Feb 14 – Feb 28

Carrots, beetsSow outdoors · Feb 21 – Mar 7

TomatoesStart indoors · Jan 17 – Jan 31

TomatoesTransplant · Mar 21 – Apr 4

Peppers, eggplantStart indoors · Jan 3 – Jan 17

Peppers, eggplantTransplant · Mar 28 – Apr 11

BeansSow outdoors · Mar 21 – Apr 4

Sweet cornSow outdoors · Mar 21 – Apr 4

Cucumbers, squashSow outdoors · Mar 21 – Apr 4

Fall lettuce, spinachSow outdoors · Sep 30 – Oct 14

GarlicPlant cloves · Nov 11 – Dec 16

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 14) and first fall frost (Nov 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 31548 came on Jan 17 — 10 days earlier than the 1991–2020 average (Jan 27).

average
Jan 272026
Jan 17

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.

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 Kingsland, GA.

Soil in Kingsland, GA

The soil mapped at the center of ZIP 31548 is Pelham — loamy sand, poorly drained.

TextureLoamy sanddrains and warms fast; dries out and needs more feeding

pH4.7strongly acidic; most vegetables like 6.0–7.0

DrainagePoorly drainedconsider raised beds

Organic matter2%moderate

Hydrologic groupB/Dmoderate when drained; wet otherwise

Farmland classNot prime farmlandUSDA classification

Map unit: Pelham loamy sand, 0 to 2 percent slopes, frequently flooded.

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 31548; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Kingsland, GA

Summer high91 °Faverage high, July

Winter low38 °Faverage low, January

Hot days70days a year at 90 °F or more

Freezing nights30nights a year at 32 °F or less

Growing degree days6,292base 50 °F — the season’s usable heat

Longest day14 h 09 mindaylight on June 21

Shortest day10 h 09 mindaylight on December 21

Onions to growShort-daysummer days stay under about 14 h 20 min, so long-day varieties won’t bulb

Precipitation56.5 inper year, rain and melted snow

Average high and low, by month

Precipitation by month inches

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Woodbine, GA (11 mi away); precipitation: Kingsland 3.1 Ne, GA (6 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

2 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.

Kings Bay, GA · 11 mi

315589a

Saint Marys, GA · 12 mi

White Oak, GA · 16 mi

320359b

Fernandina Beach, FL · 17 mi

Georgia planting zones →

Questions about 31548

What planting zone is ZIP code 31548?

ZIP code 31548 (Kingsland, GA) is in USDA hardiness zone 9a on the 2023 map: the coldest night of an average winter reaches 20 to 25 °F (−6.7 to −3.9 °C).

When is the last frost in Kingsland, GA?

The median last spring frost (32 °F) near 31548 is March 14; after April 6 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Woodbine station.

When is the first frost in Kingsland, GA?

The median first fall frost near 31548 is November 25, giving a median frost-free growing season of 257 days.

When should I plant tomatoes in 31548?

Start tomato seeds indoors around Jan 17 – Jan 31 and set transplants outside around Mar 21 – Apr 4, one to three weeks after the median last frost.

How much rain and snow does 31548 get?

About 56.5 inches of precipitation a year (NOAA 1991–2020 normals, Kingsland 3.1 Ne station).

How hot do summers get in Kingsland, GA?

The average high peaks at 91 °F in July, with about 70 days a year at 90 °F or more.

What kind of soil does 31548 have?

The USDA soil survey maps Pelham at the center of ZIP 31548: loamy sand, poorly drained, pH about 4.7 (strongly acidic).

Did spring come early in Kingsland, GA in 2026?

Spring leaf-out near 31548 came on Jan 17 in 2026, 10 days earlier than the 1991–2020 average (Jan 27), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Kingsland, GA?

Short-day onions: the longest day near 31548 is 14 h 09 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.