Look up your Hardiness Zone! Find Your USDA Zone: Hardiness Zone: (look up another zip code) USDA ZoneZone 3 (1)Zone 4 (2)Zone 5 (2)Zone 6 (2)Zone 7 (2)Zone 8 (2)Zone 9 (2)Height0-9 Inches (4)10-19 Inches (1)20-29 Inches (3)30-39 Inches (5)40-49 Inches (1) Narrow Your Search USDA ZoneZone 3 (1)Zone 4 (2)Zone 5 (2)Zone 6 (2)Zone 7 (2)Zone 8 (2)Zone 9 (2)Height0-9 Inches (4)10-19 Inches (1)20-29 Inches (3)30-39 Inches (5)40-49 Inches (1) All Wildflower Seeds: Rudbeckia - Senna X Create new wish list Wish List Name: Privacy Level: Public Shared Private Comment: