Sun or very light shade
July to frost
Widely tolerant including heavy clays
24 to 30 inches
Gold with brown centers
Zone 3 - very hardy
Mixed beds. butterfly gardens. naturalizing. cut flowers
Easy and long lived. Inset and disease resistant. Can be divided in spring or fall. Long blooming. good cut flower.
This is the classic Black-Eyed Susan – daisy-like flowers with bright yellow petals and deep brown centers. The "Goldstrum" variety grows about 2 feet tall and flowers from midsummer through mid fall. Rudbeckia tribloba originates from a native species and is taller at about 3 feet and has a more branching habit. It blooms from late summer right through to hard freezes. Both are spectacular planted in masses or in wildflower gardens where they will sow quite readily. They make a nice late summer flowering addition in mixed borders and are excellent cut flowers.