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

Planting zone for 71235 — Dubach, LA

ZIP code 71235 (Dubach, Lincoln County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 11 and the first fall frost November 16.

Where ZIP 71235 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 11

First frostNov 16

2012 zone8b

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 8b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Dubach, LA…

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 Dubach, LA

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMarch 11median — 50% chance of a later frost

Safe for tender plantsMarch 31only 10% chance of frost after

First fall frostNovember 16median — 10% chance by Oct 31

Growing season248 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 24 and returns around December 1.

From the NOAA station Ruston La Tech, LA — 12 miles away, elevation 295 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 71235

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Jan 28 – Feb 11

SpinachSow outdoors · Jan 28 – Feb 18

Broccoli, cabbageStart indoors · Dec 31 – Jan 14

Broccoli, cabbageTransplant · Feb 18 – Mar 4

Onion setsPlant outdoors · Feb 11 – Feb 25

PotatoesPlant outdoors · Feb 18 – Mar 4

LettuceSow outdoors · Feb 11 – Feb 25

Carrots, beetsSow outdoors · Feb 18 – Mar 4

TomatoesStart indoors · Jan 14 – Jan 28

TomatoesTransplant · Mar 18 – Apr 1

Peppers, eggplantStart indoors · Dec 31 – Jan 14

Peppers, eggplantTransplant · Mar 25 – Apr 8

BeansSow outdoors · Mar 18 – Apr 1

Sweet cornSow outdoors · Mar 18 – Apr 1

Cucumbers, squashSow outdoors · Mar 18 – Apr 1

Fall lettuce, spinachSow outdoors · Sep 21 – Oct 5

GarlicPlant cloves · Nov 2 – Dec 7

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 11) and first fall frost (Nov 16) 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 71235 came on Jan 31 — 4 days earlier than the 1991–2020 average (Feb 4).

average
Feb 42026
Jan 31

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 Louisiana

503 plants native to the lower 48 states, recorded in Louisiana, and rated by the USDA to survive 15 °F or colder — the bottom of zone 8b. 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 Dubach, LA.

Soil in Dubach, LA

The soil mapped at the center of ZIP 71235 is Iuka — fine sandy loam, moderately well drained.

TextureFine sandy loamdrains and warms fast; dries out and needs more feeding

pH5.0strongly acidic; most vegetables like 6.0–7.0

DrainageModerately well drainednatural drainage class

Organic matter1.75%low — add compost

Hydrologic groupCwater soaks in slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Iuka-Dela complex, 0 to 1 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 71235; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Dubach, LA

Summer high93 °Faverage high, August

Winter low35 °Faverage low, January

Hot days85days a year at 90 °F or more

Freezing nights46nights a year at 32 °F or less

Growing degree days5,991base 50 °F — the season’s usable heat

Longest day14 h 18 mindaylight on June 21

Shortest day10 h 00 mindaylight on December 21

Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully

Precipitation59.6 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: Ruston La Tech, LA (12 mi away); precipitation: Ruston 5.5 Nnw, LA (6 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 8b.

Grambling, LA · 12 mi

Louisiana planting zones →

Questions about 71235

What planting zone is ZIP code 71235?

ZIP code 71235 (Dubach, LA) 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 Dubach, LA?

The median last spring frost (32 °F) near 71235 is March 11; after March 31 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Ruston La Tech station.

When is the first frost in Dubach, LA?

The median first fall frost near 71235 is November 16, giving a median frost-free growing season of 248 days.

When should I plant tomatoes in 71235?

Start tomato seeds indoors around Jan 14 – Jan 28 and set transplants outside around Mar 18 – Apr 1, one to three weeks after the median last frost.

How much rain and snow does 71235 get?

About 59.6 inches of precipitation a year (NOAA 1991–2020 normals, Ruston 5.5 Nnw station).

How hot do summers get in Dubach, LA?

The average high peaks at 93 °F in August, with about 85 days a year at 90 °F or more.

What kind of soil does 71235 have?

The USDA soil survey maps Iuka at the center of ZIP 71235: fine sandy loam, moderately well drained, pH about 5.0 (strongly acidic).

Did spring come early in Dubach, LA in 2026?

Spring leaf-out near 71235 came on Jan 31 in 2026, 4 days earlier than the 1991–2020 average (Feb 4), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Dubach, LA?

Intermediate onions: the longest day near 71235 is 14 h 18 min, so day-neutral types bulb best; long-day varieties may not bulb fully.