Tree•USDA: SEGR4•PLANTED: SUMMER 2026•
Gregg Catclaw Acacia
Senegalia greggii
FAMILY: Fabaceae (Pea Family)ALSO KNOWN AS:
Gregg's AcaciaGregg's Catclaw AcaciaGregg CatclawGregg's CatclawTexas Catclaw AcaciaTexas CatclawLong-flowered Catclaw AcaciaLongflower Catclaw AcaciaLong-flowered CatclawLongflower CatclawCatclaw AcaciaCatclawDevil's ClawUna De GatoGregg Acacia
A standout species for Texas gardens, Gregg Catclaw Acacia (Senegalia greggii) is a deciduous tree native across the Chihuahuan Deserts, Edwards Plateau, Gulf Coast Prairies and Marshes, and Southern Texas Plains. It features distinctive dull-green foliage.
During Spring, Summer, and Fall, the plant produces white, yellow blooms. After blooming, it produces red-brown 6-13 cm.
It plays a key ecological role as a larval host plant for Central Texas butterflies, including Reakirt's Blue and Mexican Yellow. Provides bird and rabbit shelter and food.
Best suited to caliche, dry, rocky, sand, and well drained, Gregg Catclaw Acacia adapts seamlessly to local soil conditions. It requires minimal supplemental water and tolerates dry spells with ease.

Gregg Catclaw Acacia
Senegalia greggii
NATIVE RANGE // EPA & NPSOT
Texas Native Ecoregions18 REGIONS
[ INITIALIZING GEOSPATIAL MAP DATA... ]
Chihuahuan Deserts, Edwards Plateau, Gulf Coast Prairies and Marshes, Southern Texas Plains
SOURCE: US EPA L3/L4 ECOREGIONS • NPSOT VERIFIED30.1727° N, 98.0873° W (DRIPPING SPRINGS, TX)
GROWTH & VISUAL PROFILEPerennial • Tree
↕HEIGHT
15 ft.
↔SPREAD
5 ft.
🌱GROWTH
Moderate
🍂FOLIAGE
Deciduous
BLOOM COLOR
White
Yellow
BLOOM CALENDARSpring, Summer, Fall (9 MO)
JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
BOTANICAL ALIASES & ALTERNATE NAMES15 ALIASES
Gregg's AcaciaGregg's Catclaw AcaciaGregg CatclawGregg's CatclawTexas Catclaw AcaciaTexas CatclawLong-flowered Catclaw AcaciaLongflower Catclaw AcaciaLong-flowered CatclawLongflower CatclawCatclaw AcaciaCatclawDevil's ClawUna De GatoGregg Acacia
ECOLOGICAL ROLE & WILDLIFE
🦋 CENTRAL TEXAS LARVAL HOST PLANT
Larval food plant for: Reakirt's Blue, Mexican Yellow
ATTRACTS & SUPPORTS
Larval Host: Mexican YellowLarval Host: Reakirt's BlueBeesBirdsNectar Insects
Larval host plant for Central Texas butterflies: Reakirt's Blue and Mexican Yellow. Verified online via Texas Entomology (Mike Quinn). Verified via Texas Entomology (Mike Quinn, texasento.net) and Lady Bird Johnson Wildflower Center (wildflower.org).
WATER NEEDLow (Drought Tolerant)
VL
LOW
MOD
HIGH
SOLAR NEEDSun, Part Shade
SHADE
PART SHADE
PART SUN
FULL SUN
SUBSTRATE & SOILpH: Neutral to Alkaline
CalicheDryRockySandWell Drained
⚠️ BOTANICAL SAFETY NOTICE
Non-toxic to humans, birds, and domestic animals.
MAINTENANCE & PROPAGATION
Low maintenance once established.