University of Delaware entomologist Doug Tallamy's research has identified “keystone” plant species that make up the ...

There are many varieties of aster, both perennial and annual, and their bright daisy-like flowers come in shades of pink, purple, blue, apricot and white. They are members of the Asteraceae family ...

Asters are one of the last perennial flowers to bloom in the landscape, providing color and texture well into late fall. They’re beautiful in cutting gardens or as part of a mixed border.