191 EVELYN CTExplore Garden
PerennialUSDA: RULA3PLANTED: SPRING 2025

Black-eyed Susan

Rudbeckia hirta

FAMILY: Asteraceae (Aster Family)

A resilient native native Texas herbaceous that provides year-round foliage and structure to the landscape. Native across the Cross Timbers, East Central Texas Plains, Edwards Plateau, Gulf Coast Prairies and Marshes, Southern Texas Plains, Texas Blackland Prairies, and Western Gulf Coastal Plain, Black-eyed Susan (Rudbeckia hirta) thrives in local conditions while supporting the surrounding ecosystem. Distinguished by dark foliage that is gray-green, it offers an exceptional visual and tactile texture. During spring, summer, and fall, the plant produces brown, yellow flower clusters. Flowering is followed by fruit is a cypsela (pl. cypselae). though technically incorrect, the fruit is often referred to as an achene that add vibrant visual contrast and seasonal interest. Early spring leaves boiled for greens by Cherokees and other Southeastern peoples. It plays a vital ecological role as a larval host plant for Central Texas butterflies, including Silvery Checkerspot, Bordered Patch, and Monarch. The species provides essential habitat and food, supporting Bees, Birds, Butterflies, and Nectar Insects. Thriving in clay, dry, loam, moist, rich, sand, and well drained, Black-eyed Susan demonstrates outstanding hardiness once established. It requires minimal supplemental water and adapts seamlessly to drought conditions.

Black-eyed Susan

Black-eyed Susan

Rudbeckia hirta

CREDIT: NPSOT
NATIVE RANGE // EPA & NPSOT

Texas Native Ecoregions36 REGIONS

[ INITIALIZING GEOSPATIAL MAP DATA... ]

Cross Timbers, East Central Texas Plains, Edwards Plateau, Gulf Coast Prairies and Marshes, Southern Texas Plains, Texas Blackland Prairies, Western Gulf Coastal Plain

SOURCE: US EPA L3/L4 ECOREGIONS • NPSOT VERIFIED30.1727° N, 98.0873° W (DRIPPING SPRINGS, TX)
GROWTH & VISUAL PROFILEAnnual • Herbaceous
HEIGHT

1 ft.

SPREAD

1 ft.

🍂FOLIAGE

Deciduous

BLOOM COLOR
Brown
Yellow
BLOOM CALENDARSpring, Summer, Fall (9 MO)
JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
ECOLOGICAL ROLE & WILDLIFE
🦋 CENTRAL TEXAS LARVAL HOST PLANT

Larval food plant for: Silvery Checkerspot, Bordered Patch, Monarch

ATTRACTS & SUPPORTS
Larval Host: MonarchLarval Host: Bordered PatchLarval Host: Silvery CheckerspotBeesBirdsButterfliesNectar Insects

Larval host plant for Central Texas butterflies: Silvery Checkerspot, Bordered Patch, and Monarch. Verified online via Texas Entomology (Mike Quinn), Wikipedia (Rudbeckia hirta), Web Search — Central Texas Butterfly Host Records. Verified via Texas Entomology (Mike Quinn, texasento.net) and Lady Bird Johnson Wildflower Center (wildflower.org).

WATER NEEDMedium (Drought Tolerant)
VL
LOW
MOD
HIGH
SOLAR NEEDSun
SHADE
PART SHADE
PART SUN
FULL SUN
SUBSTRATE & SOILpH: Neutral to Alkaline
ClayDryLoamMoistRichSandWell Drained
⚠️ BOTANICAL SAFETY NOTICE

Non-toxic to humans, birds, and domestic animals.

MAINTENANCE & PROPAGATION

Low maintenance once established.