How do you know when a sunflower is ready to have its seeds taken out?

My giant sunflower is to big so I cut it down and I want the seeds. I'm not sure if y=they are ready to come off the plant yet. Some are all white and soft and I dont think they are ready. When will they be ready? how will I know?

How do you know when a sunflower is ready to have its seeds taken out?
Bad move. You have to let seeds dry on the plant before you cut them down. Sometimes it makes our yards look unkempt, but if we want seeds that's what we have to do with all flowers.





Throw it away and start over next year. Plant it in the sun where you have room for it to grow. When the seeds are black and birds start pecking at it, you can cut it down.
Reply:what u should have done before cutting it down was put a paper bag over the top secure it with a twisty let them fall naturaly into the bag then they are fully ripe
Reply:The best time to take or cut the sunflower head is that the seeds are all black and backside of the flower became brown. Perhaps, you should dry the whole head part hanging upside down in the garage or somewhere until backside of the flower is dry and brown. Then it's ready to shake it off in the brown bag.