Perennial•USDA: RULA3•PLANTED: SPRING 2025•
Black-eyed Susan
Rudbeckia hirta
FAMILY: Asteraceae (Aster Family)ALSO KNOWN AS:
Greenhead ConeflowerCutleaf ConeflowerWild GoldenglowSochanBrown-eyed Susan
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) is an adaptable deciduous perennial valued for both ornamental appeal and ecosystem support. It features distinctive gray-green foliage.
During Spring, Summer, and Fall, the plant produces brown, yellow blooms. Flowering is followed by ornamental fruit is a cypsela (pl. cypselae). though technically incorrect, the fruit is often referred to as an achene that add seasonal interest. Early spring leaves boiled for greens by Cherokees and other Southeastern peoples.
It plays a key ecological role as a larval host plant for Central Texas butterflies, including Silvery Checkerspot. It provides essential nectar, shelter, or forage for native wildlife, including 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 tolerates dry spells with ease.

Black-eyed Susan
Rudbeckia hirta
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.
🌱GROWTH
Moderate
🍂FOLIAGE
Deciduous
BLOOM COLOR
Brown
Yellow
BLOOM CALENDARSpring, Summer, Fall (9 MO)
JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
BOTANICAL ALIASES & ALTERNATE NAMES5 ALIASES
Greenhead ConeflowerCutleaf ConeflowerWild GoldenglowSochanBrown-eyed Susan
ECOLOGICAL ROLE & WILDLIFE
🦋 CENTRAL TEXAS LARVAL HOST PLANT
Larval food plant for: Silvery Checkerspot
ATTRACTS & SUPPORTS
Larval Host: Silvery CheckerspotBeesBirdsButterfliesNectar Insects
Larval host plant for Central Texas butterflies: Silvery Checkerspot. Verified online via Texas Entomology (Mike Quinn). 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.