A stunning, dwarf perennial sunflower, Helianthus 'Happy Days' features large double yellow flowers with a yellow center from midsummer to fall.
A stunning, dwarf perennial sunflower, Helianthus 'Happy Days' features large double yellow flowers with a yellow center from midsummer to fall.
Cut dead stems back to the ground in the late fall. Grow in full sun well-drained soil.
