Coreopsis verticillata 'Grandiflora' (Threadleaf Tickseed)

Coreopsis 'Grandiflora' is a cultivar of Coreopsis verticillata, commonly known as Threadleaf Tickseed. It is a herbaceous perennial with finely divided, thread-like foliage and bright yellow daisy-like flowers. The plant forms a dense clump of foliage that is covered in a profusion of blooms throughout the summer. It is a popular plant in garden borders, beds, and containers.