Rudbeckia maxima, giant coneflower

Category: Sun Perennials
Family: Compositae
Origin: southern US
Evergreen: no
Flower Color: yellow, brown
Bloom Time: late spring
Height: 7 ft
Width: 3 ft
Exposure: sun to part sun
Irrigation: medium to high
Cold Hardiness: -30 F
Description: Very impressive large cone flowers on long stalks. A riparian species preferring very moist soil. Trim back old foliage for a new flush.