The Best Big and Tall Sunflowers
'Kong Hybrid' is a sturdy-stemmed, 14-foot sunflower with perfectly round 10-inch golden flowers.
'Mammoth Russian' is the classic county-fair competition sunflower. It grows 12 to 15 feet with a 15-inch head filled with striped, edible seeds.
'Sunzilla' will grow to 16 feet tall with golden flowers filled with edible seeds.
'Titan' is an heirloom with giant golden flower heads growing to as much as 24 inches across.