Rudbeckia maxima has huge powder blue leaves and towering stems of black-eyed Susan flowers.

Rudbeckia 'Henry Eilers' forms unique, bright yellow quilled petals with brown centres on tall stems in summer.

Rudbeckia triloba is a Brown-eyed Susan with a bounty of bright yellow flowers and dark cones from mid-summer to frost.

Rudbeckia 'Blackjack Gold', a sweet coneflower, has small and plentiful yellow flowers with dark brown to black cones.