Archive for the ‘Sunflower (Helianthus)’ Category

Mid-Summer Blooming ‘Happy Days’ Sunflower

The cheerful golden yellow flowers of Happy Days sunflower (Helianthus ‘Happy Days’) should brighten your garden during the waning days of summer (USDA hardiness zones 5-9). This perennial sunflower has a long 4 to 6 week blooming period. In its first season new plants grow 24-30 inches tall and almost as wide. In subsequent years, tack on an additional 12-18 inches in […]