Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated Oct 30, 2026

Planting zone for 76043 — Glen Rose, TX

ZIP code 76043 (Glen Rose, Somervell County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is March 28 and the first fall frost November 7.

Where ZIP 76043 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 28

First frostNov 7

2012 zone7b

Was 7b on the 2012 map — a full 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 Glen Rose, TX…

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 Glen Rose, TX

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMarch 28median — 50% chance of a later frost

Safe for tender plantsApril 19only 10% chance of frost after

First fall frostNovember 7median — 10% chance by Oct 22

Growing season225 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 11 and returns around November 18.

From the NOAA station Rainbow, TX — 6 miles away, elevation 650 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 76043

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Feb 14 – Feb 28

SpinachSow outdoors · Feb 14 – Mar 7

Broccoli, cabbageStart indoors · Jan 17 – Jan 31

Broccoli, cabbageTransplant · Mar 7 – Mar 21

Onion setsPlant outdoors · Feb 28 – Mar 14

PotatoesPlant outdoors · Mar 7 – Mar 21

LettuceSow outdoors · Feb 28 – Mar 14

Carrots, beetsSow outdoors · Mar 7 – Mar 21

TomatoesStart indoors · Jan 31 – Feb 14

TomatoesTransplant · Apr 4 – Apr 18

Peppers, eggplantStart indoors · Jan 17 – Jan 31

Peppers, eggplantTransplant · Apr 11 – Apr 25

BeansSow outdoors · Apr 4 – Apr 18

Sweet cornSow outdoors · Apr 4 – Apr 18

Cucumbers, squashSow outdoors · Apr 4 – Apr 18

Fall lettuce, spinachSow outdoors · Sep 12 – Sep 26

GarlicPlant cloves · Oct 24 – Nov 28

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 28) and first fall frost (Nov 7) 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 76043 came on Feb 8 — about the same time as the 1991–2020 average (Feb 6).

average
Feb 62026
Feb 8

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 Texas

620 plants native to the lower 48 states, recorded in Texas, 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 Glen Rose, TX.

Soil in Glen Rose, TX

The soil mapped at the center of ZIP 76043 is Eckrant — very cobbly clay, well drained.

TextureVery cobbly clayholds water and nutrients; slow to drain and warm up

pH7.8slightly alkaline; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter4.5%moderate

Hydrologic groupDwater soaks in very slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Eckrant-Purves association, 1 to 8 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 76043; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Glen Rose, TX

Summer high96 °Faverage high, July

Winter low31 °Faverage low, January

Hot days109days a year at 90 °F or more

Freezing nights63nights a year at 32 °F or less

Growing degree days6,107base 50 °F — the season’s usable heat

Longest day14 h 16 mindaylight on June 21

Shortest day10 h 02 mindaylight on December 21

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

Precipitation37.3 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: Rainbow, TX (6 mi away); precipitation: Glen Rose 5.1 Ssw, TX (2 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

Walnut Springs, TX · 7 mi

Texas planting zones →

Questions about 76043

What planting zone is ZIP code 76043?

ZIP code 76043 (Glen Rose, TX) 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 Glen Rose, TX?

The median last spring frost (32 °F) near 76043 is March 28; after April 19 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Rainbow station.

When is the first frost in Glen Rose, TX?

The median first fall frost near 76043 is November 7, giving a median frost-free growing season of 225 days.

When should I plant tomatoes in 76043?

Start tomato seeds indoors around Jan 31 – Feb 14 and set transplants outside around Apr 4 – Apr 18, one to three weeks after the median last frost.

How much rain and snow does 76043 get?

About 37.3 inches of precipitation a year (NOAA 1991–2020 normals, Glen Rose 5.1 Ssw station).

How hot do summers get in Glen Rose, TX?

The average high peaks at 96 °F in July, with about 109 days a year at 90 °F or more.

What kind of soil does 76043 have?

The USDA soil survey maps Eckrant at the center of ZIP 76043: very cobbly clay, well drained, pH about 7.8 (slightly alkaline).

Did spring come early in Glen Rose, TX in 2026?

Spring leaf-out near 76043 came on Feb 8 in 2026, about the same as the 1991–2020 average (Feb 6), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Glen Rose, TX?

Short-day onions: the longest day near 76043 is 14 h 16 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

Did the zone for 76043 change?

Yes. The 2012 USDA map put 76043 in zone 7b; the 2023 map puts it in zone 8b. The newer map uses 1991–2020 data and more weather stations.