Texas Tech University

Sunflower

Helianthus annuus
Natives

(Detailed plant information can be found at the bottom of the page.)
Helianthus annuus

Helianthus annuus Photo Gallery



Helianthus annuus Plant Information

Classification  
   
Scientific Name: Helianthus annuus
Common Name: sunflower
Family: Asteraceae
Suggested Uses: annuals, beds & borders, cutflowers, natives
   
Characteristics  
   
Plant Form: upright
Height: 2 - 10 feet
Spread: 1 - 4 feet
Foliage: large 6 - 8" scratchy, pubescent leaves
Flower: large, yellow, bronze, and cream daisy-like flowers ranging in size from 3' to 14" depending on cultivar
Bloom Period: Summer - Fall
   
Environment  
   
Sun: full sun
Water: low water requirement
Soil: well-drained, loose, fertile soil
Heat Tolerance: high heat tolerance
Native Range: Texas

North America
   
Care  
   
Maintenance: rapid growth rate

propagation by seed
Pests & Pathology: susceptible to powdery mildew, aphids, and cutworms
Wildlife: attracts butterflies and birds
   
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

TTU Plant Resources