Look up your Hardiness Zone! Find Your USDA Zone: Hardiness Zone: (look up another zip code) AvailabilityIn stock (5)Out of StockRegionMidwest (2)Northern (1)Northeast (2)Southeast (1)GerminationNo Stratification (3)Stratify 4 Weeks (1) Narrow Your Search Out of Stock Clear ALL selections AvailabilityIn stock (5)Out of StockRegionMidwest (2)Northeast (2)Northern (1)Southeast (1)GerminationNo Stratification (3)Stratify 4 Weeks (1) All Wildflower Seeds: Rudbeckia - Senna X Create new wish list Wish List Name: Privacy Level: Public Shared Private Comment: