[0064] The next step is to set the timer 4 for the current day of the week and hour and minute of the day. Push the program button and set the days of the week and hour and minute of the day to start the watering. Push the program button again and set the hour and minute of the day to stop the watering. The time to stop watering equals to the time to start plus the duration of time for watering. After that, push the program button to the "automatic" mode. The apparatus will automatically water the plant according to the schedule. Periodically, the user must refill water to the reservoir14. The refilling will not alter the watering schedule.