This year I had all my broccoli plants develop heads with lots of leaves pushing up between the individual flower clumps - to the point that I did not get any normal broccoli heads. Same thing with the side sprouts - although there were very few of these. Essentially, I lost my crop. My father has a garden near mine and had the same thing. What is going on? Is there a fix?
Broccoli Head Issue
Certified GKH Gardening Expert
This article may help too: https://www.gardeningknowhow.com/edible/vegetables/broccoli/loose-bitter-heads.htm
Could the plants have been broccoli rabe? Here is an article with picture: https://www.gardeningknowhow.com/edible/vegetables/broccoli-rabe/broccoli-rabe.htm