Plant Identification
Sunflowers are either annual or perennial plants mostly grown for cut flowers. Flowers bloom in summer and fall and attract butterflies. Plants are tough, hairy plants and consist of a brown circular center of seeds surrounded by short yellow petals. Perennial forms grow rapidly and can become invasive.
Optimum conditions for growth
Sunflowers prefer areas with full sun. Most species require regular amounts of water. Large species require very moist and rich soil.