Q.Is broccoli plant perennial?
I was just wondering if you have to replant Broccoli every year.
If you let ordinary broccoli bolt (flower) and go to seed, some plants might come up the next year, but they wouldn't look much like the broccoli you know, so, yes, you need to plant those every year.
Some strains of perennial broccoli are being developed, you might want to look into those. Also there is a Chinese broccoli that is considered perennial. Here's a little information: https://www.gardeningknowhow.com/edible/vegetables/vgen/growing-asian-style-vegetables.htm