Sunflowers are self-seeders originally planted 8 yrs ago, aptly named 'Kong'. usually attain 10 to 12 ft., are multi-branching, and have numerous flowers for a, relatively speaking, good length of time. Goldfinch numbers really increase as flower starts setting new seed.
Cardinals also get involved w/ this plant. Monarchs and Sulphur butterflies seem attracted to them.
looking west
looking east.