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

Planting zone for 30815 — Hephzibah, GA

ZIP code 30815 (Hephzibah, Richmond County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 23 and the first fall frost November 9.

Where ZIP 30815 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.

Zone8b15 to 20 °F
Coldest night−9.4 to −6.7 °C
Last frostMar 23
First frostNov 9
2012 zone8a

Was 8a on the 2012 map — half a zone warmer now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 8b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Hephzibah, 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 Hephzibah, GA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 23median — 50% chance of a later frost
Safe for tender plantsApril 9only 10% chance of frost after
First fall frostNovember 9median — 10% chance by Oct 28
Growing season232 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 8 and returns around November 24.

From the NOAA station Augusta Bush Field Airport, GA — 8 miles away, elevation 131 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 30815

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 9 – Feb 23
SpinachSow outdoors · Feb 9 – Mar 2
Broccoli, cabbageStart indoors · Jan 12 – Jan 26
Broccoli, cabbageTransplant · Mar 2 – Mar 16
Onion setsPlant outdoors · Feb 23 – Mar 9
PotatoesPlant outdoors · Mar 2 – Mar 16
LettuceSow outdoors · Feb 23 – Mar 9
Carrots, beetsSow outdoors · Mar 2 – Mar 16
TomatoesStart indoors · Jan 26 – Feb 9
TomatoesTransplant · Mar 30 – Apr 13
Peppers, eggplantStart indoors · Jan 12 – Jan 26
Peppers, eggplantTransplant · Apr 6 – Apr 20
BeansSow outdoors · Mar 30 – Apr 13
Sweet cornSow outdoors · Mar 30 – Apr 13
Cucumbers, squashSow outdoors · Mar 30 – Apr 13
Fall lettuce, spinachSow outdoors · Sep 14 – Sep 28
GarlicPlant cloves · Oct 26 – Nov 30
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 23) and first fall frost (Nov 9) 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 30815 came on Feb 13 — 9 days later than the 1991–2020 average (Feb 4).

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 8b in Georgia

590 plants native to the lower 48 states, recorded in Georgia, and rated by the USDA to survive 15 °F or colder — the bottom of zone 8b. Each links to its USDA PLANTS profile.

Trees 89

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 143

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 174

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 159

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 Hephzibah, GA.

Soil in Hephzibah, GA

The soil mapped at the center of ZIP 30815 is Orangeburg — loamy sand, well drained.

TextureLoamy sanddrains and warms fast; dries out and needs more feeding
pH5.3strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter0.75%low — add compost
Hydrologic groupBwater soaks in moderately
Farmland classNot prime farmlandUSDA classification

Map unit: Orangeburg loamy sand, 8 to 15 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 30815; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Hephzibah, GA

Summer high94 °Faverage high, July
Winter low35 °Faverage low, January
Hot days86days a year at 90 °F or more
Freezing nights51nights a year at 32 °F or less
Growing degree days6,095base 50 °F — the season’s usable heat
Longest day14 h 21 mindaylight on June 21
Shortest day9 h 57 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation44.1 inper year, rain and melted snow
Snowfall1 inper year

Average high and low, by month

20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 60 °F, low 35 °F 60°35° JanFebruary: average high 64 °F, low 38 °F 64°38° FebMarch: average high 71 °F, low 44 °F 71°44° MarApril: average high 79 °F, low 51 °F 79°51° AprMay: average high 86 °F, low 60 °F 86°60° MayJune: average high 91 °F, low 68 °F 91°68° JunJuly: average high 94 °F, low 72 °F 94°72° JulAugust: average high 93 °F, low 71 °F 93°71° AugSeptember: average high 88 °F, low 65 °F 88°65° SepOctober: average high 79 °F, low 53 °F 79°53° OctNovember: average high 69 °F, low 42 °F 69°42° NovDecember: average high 62 °F, low 37 °F 62°37° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″January: 3.84 in precipitation, 0.4 in snowfall 3.8 JanFebruary: 3.67 in precipitation, 0.3 in snowfall 3.7 FebMarch: 4.08 in precipitation 4.1 MarApril: 2.92 in precipitation 2.9 AprMay: 3.05 in precipitation 3.0 MayJune: 4.75 in precipitation 4.8 JunJuly: 4.48 in precipitation 4.5 JulAugust: 4.61 in precipitation 4.6 AugSeptember: 3.60 in precipitation 3.6 SepOctober: 2.56 in precipitation 2.6 OctNovember: 2.66 in precipitation 2.7 NovDecember: 3.87 in precipitation, 0.1 in snowfall 3.9 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Augusta Bush Field Airport, GA (8 mi away); precipitation: Augusta Bush Field Airport, GA (8 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 8b.

308128b
Gracewood, GA · 6 mi
308058b
Blythe, GA · 7 mi
309038b
Augusta, GA · 7 mi
309148b
Augusta, GA · 7 mi
309168b
Augusta, GA · 7 mi
309198b
Augusta, GA · 7 mi
309998b
Augusta, GA · 7 mi
309068b
Augusta, GA · 7 mi

Georgia planting zones →

Questions about 30815

What planting zone is ZIP code 30815?

ZIP code 30815 (Hephzibah, GA) is in USDA hardiness zone 8b on the 2023 map: the coldest night of an average winter reaches 15 to 20 °F (−9.4 to −6.7 °C).

When is the last frost in Hephzibah, GA?

The median last spring frost (32 °F) near 30815 is March 23; after April 9 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Augusta Bush Field Airport station.

When is the first frost in Hephzibah, GA?

The median first fall frost near 30815 is November 9, giving a median frost-free growing season of 232 days.

When should I plant tomatoes in 30815?

Start tomato seeds indoors around Jan 26 – Feb 9 and set transplants outside around Mar 30 – Apr 13, one to three weeks after the median last frost.

How much rain and snow does 30815 get?

About 44.1 inches of precipitation a year and 1 inches of snowfall (NOAA 1991–2020 normals, Augusta Bush Field Airport station).

How hot do summers get in Hephzibah, GA?

The average high peaks at 94 °F in July, with about 86 days a year at 90 °F or more.

What kind of soil does 30815 have?

The USDA soil survey maps Orangeburg at the center of ZIP 30815: loamy sand, well drained, pH about 5.3 (strongly acidic).

Did spring come early in Hephzibah, GA in 2026?

Spring leaf-out near 30815 came on Feb 13 in 2026, 9 days later than the 1991–2020 average (Feb 4), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Hephzibah, GA?

Intermediate onions: the longest day near 30815 is 14 h 21 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 30815 change?

Yes. The 2012 USDA map put 30815 in zone 8a; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.