Rudbeckia laciniata

Common Names

Cutleaf Coneflower, Green-Headed Coneflower, Tall Coneflower, Wild Golden Glow, Golden Glow, Sochan, Thimbleweed, Coneflower

Summary

Cutleaf coneflower, a rhizomatous perennial, typically grows 3–9 feet tall with deeply lobed leaves and tall, wiry stems bearing yellow daisy-like blooms from mid-summer to fall. Flower heads feature a green central cone with drooping yellow ray florets, and the plant spreads by rhizomes to form large colonies in moist, well-drained soils, thriving in full sun to partial shade.

It is widely cultivated as an ornamental and wildlife-friendly plant, attracting pollinators and providing erosion-control benefits; however, it can spread aggressively, so space or containment is recommended and division in spring or autumn helps manage spread. It is hardy in USDA zones 3–9, deer resistant, and generally pest- and disease-free, suitable for large landscapes, wetlands, meadows, borders, rain gardens, and other moist-site plantings.

Lifecycle

Annual, Biennial, Perennial

Height

36-108 inches

Spread

18-48 inches

Hardiness Zones

Zones 3-9

Sunlight Requirements

Ideally Full Sun, tolerates Partial Sun, Partial Shade, Full Shade.

Soil Type

Moist soil of any texture or pH

Soil Drainage

Moist but well-drained

Soil pH

Rudbeckia laciniata tolerates all soil pH levels (acid, alkaline, or neutral).

Bloom Color

Yellow

Bloom Time

Summer and Fall

Foliage Color

Green, gray-green, and light green, with foliage dark green on the upper surface and pale-medium green lower surface.

Fall Foliage Color

Green

Leaf Lifecycle

Deciduous

Growth Rate

Fast

Seasons of Interest

Summer and Fall

Propagation Methods

Seeds and Division

Attracts Wildlife

Attracts bees, butterflies, other pollinators, and birds