Grow Rudbeckia fulgida deamii for reliable late-season color and easy-care performance in mixed borders, meadow-style plantings, and native or pollinator gardens. You will get masses of golden yellow to yellow-orange, daisy-like flowers with dark central cones from mid to late summer into fall, helping extend your garden display when many perennials are winding down.
Plant it in full sun for the most flowers, but you can also use it where it gets part sun/part shade. In rich, average, or leaner garden soils, it forms upright, clumping plants that reach about 24-36 inches tall. Give it space for a mature spread of about 12-24 inches, and consider grouping several plants together for a stronger drift of color.
Once established, it tolerates occasional dry spells, but you will see the best growth and bloom when the soil is kept evenly moist through summer. Water deeply during extended heat, and apply a light mulch to help hold moisture and keep soil temperatures steadier. Deadheading can keep plants looking neat and may encourage additional flowering, but you can also leave seedheads to dry for fall and winter interest.
Deam's Coneflower supports garden wildlife: the blooms provide nectar for pollinators, and the seedheads can feed birds later in the season. Cut stems for fresh bouquets, or let the flowers stand to brighten autumn borders and naturalized areas. Divide mature clumps every few years if you want to rejuvenate growth or expand your planting.