Bolted Broccoli Plant

Question

I live just south of Atlanta and two of my broccoli plants have giant flowers. Should I cut the flowers off and hope for side heads of broccoli on the same plant, or should I just give up on those plants?
Also, I think a head on another plant is ready to be harvested, but it is still only three inches across, should I harvest it?

Answer 1

The following articles should be of some help to you:
https://www.gardeningknowhow.com/edible/vegetables/vgen/what-is-bolting-what-it-means-when-a-plant-bolts.htm
https://www.gardeningknowhow.com/edible/vegetables/broccoli/how-to-grow-broccoli.htm
https://www.gardeningknowhow.com/edible/vegetables/broccoli/harvest-broccoli.htm