How long does it take for broccoli to cook?

According to BBC Food ^[1]https://www.bbc.co.uk/food/techniques/how_to_cook_broccoli, put the florets into a colander and rinse under a cold, running tap to remove any dirt. Then, gently tip into the pan of boiling water. Turn the heat down to a simmer, cover the pan with a lid and cook for 3–5 minutes. Test after 3 minutes by inserting a knife into a couple of the florets – you want it to be tender so the knife goes into the broccoli easily, but not soft or mushy. Once tender, carefully pour the florets back into the cleaned colander over the sink to drain.
According to Waitrore ^[2]https://www.waitrose.com/home/recipes/food_glossary/broccoli.html,broccoli can be boiled, steamed or stir-fried, the cooking time will depend on the size of the stalks and florets and your personal taste. To boil, place in a pan of boiling water and cook for 6-8 minutes. To steam, place in a steamer over boiling water and cook for 6-8 minutes. To stir-fry heat 1 tbsp of oil in a frying pan, add the broccoli and cook for 4-5 minutes or until tender.