I have some questions about growing Basil?

I manage to grow Sweet Basil all year round, but I do live in a tropical area. In winter, cut back on the watering, so to keep the soil moist but not soggy. Even letting the Basil roots dry out for 1 day doesn't hurt. If its really cold, just protect over night with a cardboard box, and remove in the morning when sun is back on the plants. To get new plants, always let at least one plant flower and run to seed. The seeds self sow, and you always have new plants popping up with no effort. I never have to bother harvesting seeds doing it this way. Feed with lots of compost placed on top of soil and lightly dug in, any manure, and fish emulsion is brilliant and easy to apply. Happy eating!