Mammoth Sunflower Bolting
I sowed several dozen mammoth sunflower seeds into one of my beds on August 15. This bed had just previously had manure tilled in and fresh mulch when the sprouts were a few inches tall.
Daily watering, 8 hours of sunlight a day, temperatures around 90/79 High/Low. Florida Zone 9
They're about 12-18" now, but they have all begun to form flowers, so I'm going to remove them and plant something else there. What caused them to flower so early?