growing mustard greens from seed to harvest in the yard

Green mustard is one of the popular leaf vegetables in Indonesia.
Another name is mustard meatball (because it is a companion leaf vegetable in serving meatballs)
Another type of mustard which is also sometimes called mustard greens is pakcoy/petsai or spoon mustard
This plant is easy to cultivate in the tropics, even though it comes from southern China, which has a subtropical climate.