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Rudbeckia maxima

Native to south-central USA in states such as Texas, Louisiana, and Arkansas, with a few records from South Carolina and North Carolina. A striking native perennial known for its towering flower stalks topped with 3 inch long golden-yellow petals that droop from a tall, dark central cone. Often reaching heights of 7 feet, it makes a great accent plant in a pollinator garden. Its large, powdery blue-green basal leaves, resembling cabbage, make it unique and add visual interest even when not in bloom. The flowers attract bees, butterflies, and other pollinators, while its seeds provide food for birds, such as goldfinches, in the autumn. With its bold height and foliage, this wildflower makes a dramatic focal point. Makes a great cut flower and will readily self-seed so it can be a great addition to a meadow, naturalized area or used in mass plantings. Tolerates light shade, heat, some drought, nighttime visits from deer, and a wide range of soils. Food source for the larvae of the Wavy-lined Emerald (Synchlora aerata) butterfly.

Key Info

Scientific Name: Rudbeckia maxima
Common Names: Cabbage-leaf Coneflower, Giant Coneflower, Great Coneflower, Giant Brown-eyed Susan
Family Names:
Protected Plant Species: No
Light Requirement: ,
Moisture Requirement:
Leaf Retention:
Bloom Times: ,
Flower Color: Yellow

Additional Info

Habit: Clump forming, Single stem, erect, rhizomatous
Height: 5-7'
Spread: 2-4'
Soil Conditions: Fine to coarse textured, average to moist well-drained soils
Leaves: Clump of silvery blue-green foliage that resembles a cabbage or collard green leaf. Smooth glaucous covering and large basal paddle-shaped leaves with slender long petioles can reach 2 feet long and 10 inches wide.
Flowers (or reproductive structures: Daisy-like blooms, 3 inches across with yellow drooping rays and a tall prominent dark-brown center cone which can reach 2-6 inches tall.
Fruit: Copper-brown colored cypsela that appears in fall shortly after blooming and persists into early winter.
USDA Hardiness Zone: 4 to 9
USDA Wetland Indicator Status in NC: FAC
Pollination: Bees, butterflies, other pollinators
Wildlife Connections: Grazed heavily by animals, attracts songbirds, such as goldfinches, to eat the seeds, food source for the larvae of the Wavy-lined Emerald (Synchlora aerata) butterfly
Propagation: Seed, container, division, rooted cutting