NEW! Flower Seed. Organic Prairie Glow Rudbeckia. 90 days. (Rudbeckia triloba) Single daisies to 5“ across sport petals intensely brick-red, each with a brilliant yellow tip and contrasting dark chocolate-brown center. Profuse masses of blooms atop densely-branching burgundy stems from mid-summer until hard frost. Bushy perennial native to 4 ft in height; often self-sows to form a spectacular colony. Space 15” apart.