Question: How will I know when to harvest my broccoli? I want the heads to get big, but I don’t want to wait too long.
Answer: We eat the flower buds of broccoli, with a heavy emphasis on “buds.” If you wait until the heads start to show actual yellow flowers, you’ve blown it. Cut the heads just below the lowest florets and encourage the plants to send out secondary side shoots. They will give you subsequent harvests of smaller heads a couple of weeks later.