Welcome, Heidi!
What are the coolest/coldest temps you get there during the fall/winter? I grow Arcadia broccoli. Huge heads, and huge side shoots (almost saucer size). Beautiful blue-green foliage, perfect for edible landscapes.
I experienced buttoning early on when I was a newbie. Stress to the plants.
I also experienced that my plants will start fainting and bolting in sunny temps edging close to 85°. They just swoon in too much heat here. Remember, temps are relative, and your 80° there may be my 95° here, LOL!
Linda
