Brazen™ Happy Sun Bidens

Happy Sun is the yellow-flowered member of Syngenta’s Brazen bidens series, with a compact mound and a steady warm-season show. Its semi-double daisies bring a clear, sunny color that works well in containers and mixed annual plantings, especially alongside blue or purple flowers. ## Garden use Grow it in a patio pot, hanging basket, or the front of a sunny border. Brazen bidens can flower in full sun or part shade, though stronger light generally supports more abundant flowering. The series is listed for USDA zones 9a–11a; gardeners in colder areas can use it as a seasonal annual rather than relying on winter survival. ## Size and growing conditions Expect about 8–12 inches of height and 16–24 inches of spread under production conditions. Individual plants may finish smaller or larger with climate, feeding, and container volume. Bidens ferulifolia prefers well-drained soil and moderate moisture. Keep container mix evenly moist during active growth, while allowing excess water to drain freely. The species is naturally spreading and branching, so leave room for the mound to broaden. [Syngenta](https://www.syngentaflowers.com/ams/product/flower/70091937) supplies cultivar-specific identity and growing guidance; the [Visser catalog](https://www.vissergreenhouse.com/editoruploads/files/2025%20Retail%20Catalog%281%29.pdf) confirms its yellow semi-double flowers and mounding habit. ## Maintenance Check pots often in hot weather and water when the upper mix starts to dry. Pinch or lightly trim stems only if the plant becomes uneven or outgrows its space. Regular deadheading is optional; remove faded flowers when you want a cleaner display.