Designer Threads 'Scarlet Ribbons' Threadleaf Coreopsis

Scarlet Ribbons is the named threadleaf coreopsis cultivar in Walters Gardens’ Designer Threads® collection, with velvety maroon-red flowers and fine green foliage. The breeder lists a compact mound about 16–18 inches tall and 16–20 inches wide, hardy in Zones 5–9. Its direct profile also identifies patent PP35961 and the Canadian protection code CPBRAF. [Walters Gardens](https://www.waltersgardens.com/variety.php?ID=CORRI) ## Landscape Use The narrow foliage gives this selection a fine-textured edge in sunny borders, mass plantings, or cut-flower gardens. The maroon-red blooms make a strong color accent while the rounded habit stays relatively compact. ## Growing Conditions Plant in full sun and well-drained soil. The breeder lists low to average water needs and flowering across early, middle, and late summer. Water regularly while establishing; after that, let soil drainage and weather guide irrigation rather than keeping the crown constantly wet. Zone listings vary slightly by source, with the breeder reporting 5–9 and Proven Winners 5a–9b. ## Maintenance Remove spent blooms to refresh the display, and cut back old stems in spring as new growth appears. Leave enough space for the plant’s 16–20-inch spread. [Proven Winners](https://api.provenwinners.com/plants/coreopsis/designer-threads-scarlet-ribbons-threadleaf-coreopsis-coreopsis-verticillata)