There is no broccoli sprout. It's just leaves. Is there something missing in the soil? I have raised beds with bagged soil.
My Broccoli Rabe Has No Flower, Just Leaves
Certified GKH Gardening Expert
They don't develop heads for the same reason they bolt, which is the heat. This article, which would apply to your broccoli rabe plants too, should help: https://www.gardeningknowhow.com/edible/vegetables/broccoli/broccoli-not-forming-heads.htm