The Conservatory Garden in Central Park is home to two types of coneflowers. The Rudbeckia, sometimes called black-eyed Susans, are distinctive for their dark brown centers and bright yellow petals. Echinacea flowers can also be found in the Conservatory Garden. These flowers can be spotted by their purple petals and dark brown centers. Though the health benefits of echinacea are well known, the Park does not permit guests to pick them. Coneflowers are part of the Asteraceae, or daisy, family. They're called coneflowers because when they bloom, their petals droop downward. Coneflowers typically bloom throughout the summer, making them an important part of the Conservatory Garden's landscape in July and August.