Coreopsis plant named ‘Radioactive’

Abstract

A new cultivar of hybrid Coreopsis named ‘Radioactive’ that is characterized by its large inflorescences with ray florets having an upper surface with a base color that is gold and heavily suffused with scarlet red with an overall effect of red-orange with golden tips appearing when plants are grown under hot temperatures and having a lower surface that has red centers and gold margins, its vigorous growth habit with healthy foliage, its low growing plant habit, spreading outward from above ground stems that are well branched without the need for pinching, its very good resistance to powdery mildew and leaf spot, and its reliably perennial habit in U.S.D.A. Zone 5.

It is claimed: 
     
       1. A new and distinct cultivar of  Coreopsis  plant named ‘Radioactive’ as herein illustrated and described.