Year before last I had huge broc heads then last year was not so good. Still not sure why but I will pay attention to the watering and adding amendments. It gets confusing when you have raised beds and two or three different vegies in each. My beans are said to like blood meal, brocs lime, etc.
The ones in pots in the garden did especially poorly. But again, it may have been inconsistent watering.
Heidi. Stick with this group. You will learn more than a dozen books could teach you. A custom teaching group.