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Giant Black Eyed Susan (Rudbeckia maxima)

Giant Black Eyed Susan (Rudbeckia maxima)

This perennial coneflower is easily grown in average, moist, well-drained soils in full sun. Tolerates light shade. Tolerates heat, some drought and a somewhat wide range of soils. Best in moist, organically rich soils. May be grown from seed. In optimum growing conditions, the species will naturalize by self-seeding.


No serious insect or disease problems. Susceptible to powdery mildew. Watch for slugs and snails on young plants.


Zone: 4 to 9

Height: 5.00 to 7.00 feet

Spread: 3.00 to 4.00 feet

Bloom Time: June to July

Bloom Description: Yellow rays surround dark brown center cone

Sun: Full sun

Water: Dry to medium

Maintenance: Low

Suggested Use: Naturalize

Flower: Showy, Good Cut, Good Dried

Attracts: Butterflies

Tolerate: Deer, Drought


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