Thank you for your question and welcome to our community.
Once you have harvested your mature broccoli stock,
there should be some additional growth on the side of the stock providing you have done your cutting task carefully and you have used a clean and sharp cutting tool.
The top of the broccoli that you harvested is actually the “flower”
portion of the broccoli. Cutting off the
head is sort of like cutting a flower off its stem. In this case, the stem will re-grow another
Be sure to take some pictures of your new broccoli growth and share it with us on the community.