Solanna™ Golden Crown Coreopsis grandiflora

Solanna™ Golden Crown is a yellow-flowered Coreopsis grandiflora selected for first-year flowering and a prolonged spring-to-fall display. [Danziger describes the flowers](https://www.danzigeronline.com/catalog/perennials_catalog/solanna-golden-crown/) as large and single, and the variety is offered for both pot and landscape use. ## Flowers and growth [The current breeder profile](https://www.danzigeronline.com/catalog/perennials_catalog/solanna-golden-crown/) lists a height of 35–40 cm, a spread of 50–55 cm, and USDA zones 5–10. [Danziger’s 2026 Solanna sheet](https://www.danzigeronline.com/wp-content/uploads/2025/01/Coreopsis-Solanna-2026.pdf) also identifies Golden Crown as yellow and single-flowered. [A Colorado State University perennial trial in 2017](https://agsci.colostate.edu/landscapeplants/wp-content/uploads/sites/57/2018/03/2017-CSU-Perennial-Garden-Final-Report.pdf) recorded a smaller plant, about 11 inches high by 16 inches wide; use the broader current breeder dimensions when allowing space, while recognizing that trial-grown plants can remain smaller. ## Siting Grow in full sun and allow room for the plant to broaden as it matures. Danziger lists Golden Crown as suitable for pots and landscapes and identifies the Solanna series as pollinator friendly and self-cleaning. ## Maintenance Remove damaged or spent stems for a tidy appearance. Follow local soil and watering conditions after establishment; Danziger does not provide a variety-specific irrigation schedule in the cited product information.