Texas Tech University

Helianthus annuus

Sunflower
Natives
Classification Scientific Name: Helianthus annuus
  Common Name: Sunflower
  Family: Asteraceae
  Location Index: HG6 / HG14
  Suggested Use: beds & borders

cutflowers

natives
     
Plant Plant Type: annual
  Plant Form: upright
  Height: 2 - 10 feet
  Spread: 1 - 4 feet
  Bloom Period: summer

fall
  Flower Color: yellow, bronze, cream
  Flower: large daisy-like flowers ranging in size from 3' to 14" depending on cultivar
  Foliage Texture: coarse
  Foliage: large 6 - 8" scratchy, pubescent leaves
  Growth Rate: rapid
     
Environment Native Range: Texas

North America
  Sun Requirement: full sun
  Water Requirement: low
  Soil: well-drained

fertile

loose
  Heat Tolerance: high
     
Care Liabilities: powdery mildew

aphids

cutworms
  Wildlife: butterflies

birds
  Propagation: seed
     
More Additional Notes: fun plant for children to grow

grown for its seed oil and edible seeds

best in the back of the border due to its size and often rangy foliage
Helianthus annuus

Helianthus annuus Photo Gallery