Rudbeckia triloba is a much-branched, hairy-stemmed plant with small flowers. More floriferous with smaller flowers than R. hirta. Leaves are thin and rough-textured on both sides. Attracts birds.
‘Prairie Glow’ has brightly colored flowers of yellow with a bright red eye fading to a glowing orange to bronze.
Easy to grow. Best in moist, organically rich soils. Deadhead spent flowers to encourage additional bloom. Spreads slowly by rhizomes.
P.S. No one knows who Susan is!
Height: 2-3 ft.
Spread: 1-1.5 ft.
Bloom time: July to October
Sun: full sun
According to Rutgers University, Rudbeckia are “seldom severely damaged” by deer.
photo credit: North Creek Nurseries