Broccoli is a cool weather crop. They grow best with temperatures between 50 to 70 degrees F. Plant will "Bolt" or flower if temperatures reach above 80's. Best to start these seeds indoors 4-6 weeks indoors before transplanting outside. When harvesting florets cut on an angle and new shoots will grow making new florets to harvest for weeks.
One stalk of cooked broccoli gives you 75mg of vitamin C, 3g of protein and 5g of dietary fiber with only 40 calories!