(Helianthus maximillianii) This is a wild perennial sunflower native to the US. Lots of 3-4 inch bright yellow blooms are produced from late summer until frost. These are true perennials and so will return year after year. With its glorious height of up to 8 feet, Maximillian is useful in the back of the garden bed for late summer color. Perfect for naturalized plantings as well. Most/full sun. Perennial. 6-8 feet. 50+ seeds/pack.