Information on Sun Flowers


Sun Flowers, also known as Helianthus annuus, have the interesting fact of facing the sun during the day. Their large seedheads will face east in the morning and west during the evening.

Sun Flowers are Tall Bright Blooms image by "Sr. Bee meets Sr. Sunflower" is Copyrighted by Flickr user: robstephaustralia (Rob and Stephanie Levy) under the Creative Commons Attribution license.


The majority of sun flowers are around 8 to 15 feet in height and have seedheads that are 8 to 12 inches in diameter. They are bright yellow with brown centers. Their seeds are edible and available commercially.


Sun flowers grow best in full sun and frequent waterings. Well drained soil is best, make sure to add lime if it is acidic. Rotted manure makes the best fertilizer for the flowers.


Helianthus annuus are annuals and will die after the first frost. Their life cycles can be as short as 2 months. They can endure heat and dry conditions however.


Seeds can be sown after the last frost straight into the ground.

Fun Fact

Bees, butterflies, and birds all love sun flowers. Squirrels can be seen feeding on the seed head.


  • Floridata
Keywords: sun flower, helianthus annuus, seedheads

About this Author

T.M. Samuels has been a freelance writer since 1993. She has published works in "Arthritis Today," "Alabama Living" and "Mature Years," and is the author of a gardening book. Samuels studied pre-medicine at Berry College.