Rudbeckia sub. ‘Little Henry’ Sweet Coneflower Description Tubular, quilled petals really catch your eye on this delightful flower. This compact selection of 'Henry Eilers' is just as easy to grow, great for native pollinators, and is fun to use in flower arrangements. Characteristics Hardiness Zone: 4-8 Light requirements: Sun/Part Sun Height: 3-4' Native: Yes Sizes & Prices Size: 1 GALLON $14.98 Other Information All Sweet Coneflower Sweet Coneflower Rudbeckia sub. 'Henry Eilers' Zone: 4-8 Sun HT: 3-5' Sweet Coneflower Rudbeckia sub. 'Little Henry' Zone: 4-8 Sun/Part Sun HT: 3-4'