I'm sure you master gardeners will laugh at me, but how does one grow a sunflower to be 6 feet tall? I've tried growing sunflowers from seed for the past two years, starting them in pots and transplanting the seedlings to containers outside when it gets warm enough, but the seeds I've planted have set one small bloom at about 18" and then nothing. (I haven't pinched or anything - I was always told that sunflowers are the easiest plant to grow, so I just planted 'em and watched 'em grow.) Are those huge Kansas-style sunflowers perennials that take a few years to get that tall? Any info appreciated!
Rhonda Richmond, VA USDA Zone 7
******** Basic human psychology is one of my subroutines.