Coreopsis grandiflora 'Mayfield Giants' is a 

 in the Asteraceae with notably large, yellow composite flowers. Plants commonly reach over 60 cm (2 ft) and form clumps of flowering stems. In the UK it blooms from June to September and is visited by bees and butterflies. Its natural habitats include open ground such as prairies and roadsides, which informs its cultural needs.

Coreopsis grandiflora 'Mayfield Giants' is a North American perennial in the daisy family (Asteraceae), traditionally found in open habitats such as prairies, glades and roadsides in eastern Canada and much of the United States. The specific epithet grandiflora refers to the large flower heads made up of yellow rays and a central disc. Plants frequently exceed 60 cm (2 ft), producing a succession of blooms through the summer. Give this coreopsis a sunny, open position with free-draining soil; its wild origins on open ground suit soils that do not remain waterlogged. It will tolerate some light shade but flowers most freely in full sun. Expect bloom from June to September, and note the flowers are attractive to bees and butterflies, making the cultivar useful in pollinator mixes. Use 'Mayfield Giants' where the height will be visible — sunny mixed borders, meadow-style plantings or informal roadside strips mirror its native setting. Allow space for its clump of stems so the large, daisy-like heads sit clear of surrounding foliage; as the season progresses the extended display of yellow flowers provides a sustained resource for pollinators.

Coreopsis grandiflora 'Mayfield Giants' is a perennial in the Asteraceae with notably large, yellow composite flowers. Plants commonly reach over 60 cm (2 ft) and form clumps of flowering stems. In the UK it blooms from June to September and is visited by bees and butterflies. Its natural habitats include open ground such as prairies and roadsides, which informs its cultural needs.

Coreopsis grandiflora 'Mayfield Giants' produces large yellow composite flowers from June to September and attracts bees and butterflies.

About

More in the Coreopsis genus