Double the Sun Coreopsis

Double the Sun is a compact, mounded tickseed bred for an early show of clear golden-yellow flowers. Its semi-double blooms arrive ahead of many comparable Coreopsis and provide a bright start to the season. ## Appearance PanAmerican Seed describes 2.5-inch, semi-double golden-yellow flowers on a controlled, mounded plant about 12–14 inches tall and wide. It flowers two to three weeks earlier than Early Sunrise and similar varieties. [PanAmerican Seed cultivar profile](https://www.panamseed.com/Products/018900660039383/coreopsis-double-the-sun/) ## Growing conditions The breeder lists full sun and USDA hardiness zones 4a–9b. The flowering season extends from spring through summer and into autumn. Choose a sunny, well-drained site; Coreopsis grandiflora generally performs best in open conditions with good drainage. [Coreopsis growing guidance](https://plants.ces.ncsu.edu/plants/coreopsis-grandiflora/common-name/largeflower-tickseed/) ## Uses The compact mounded habit suits front borders and smaller containers. Its early flowers also make it useful where a sunny bed needs color near the start of the season. ## Maintenance Deadhead faded flowers to extend the display. Keep the planting well drained, since persistently wet soil can reduce longevity.