Yes, these are all Black-Eyed Susan (Rudbeckia hirta) growing in our Wildflower Garden. You may think of them as only being yellow with a dark center like the ones shown to the left. However, over the years with cross-pollination and leaving some to reseed themselves, we now have a very diverse crop. Petal color, size, and shape are all different. Only the basal leaves are the same. It is a wonderful display of nature at work.
Want to know the history behind this plant?
Click here: Who was Susan anyhow?
Want to know more about the mysteries of seeds?
Click here: Collecting Seeds
By the way, the Arboretum Gardens are gorgeous this time of year with the early fall colors. Come out and see them!