Rudbeckia subtomentosa 'Henry Eilers' 8/2021 Coneflower- (Henry Eilers, IL) Sweet Coneflower or sweet black-eyed Susan, Mature size: 5x4', Yellow quilled, USDA Hardiness Zone 4, Michigan Bloom Week ISO WW32, In Garden Bed P2,3a for 13.2 YEARS (7.95). Planted in 2008.
Missouri Botanical Garden: 'Henry Eilers' typically grows to 3-5' tall on stiff, upright, leafy stems. It was found growing in the wild in a railroad prairie remnant in Montgomery County, Illinois. In general appearance, the flowers are very similar to those of the species, except the yellow rays are rolled instead of flat, giving the flower a quilled effect. Dome-shaped brown center disks. Flowers bloom in clusters atop strong, sometimes-branching stems from July to September. Dark gray-green leaves (3-6" long) in basal clumps (some 3-lobed) with smaller unlobed stem leaves. Leaves have a mild sweet aroma. The cultivar was discovered by Henry Eilers, a well-known nurseryman in southern Illinois, and was introduced by Larry Lowman of Ridgecrest Nursery and Gardens in Wynne, Arkansas in 2003.
Rudbeckia subtomentosa that was discovered in Illinois. Just like the species but the individual flower petals are rolled (quilled). Found in southern Illinois by Henry Eilers, a horticulturist and retired nurseryman. A large perennial. Needs support. Lasts a long time as a cut flower.
Photo by F.D.Richards, SE Michigan. Additional photos of this plant from 2015, 16, 17, 18, 19, 20, 21:
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