Para los que sois manitas, aquí tenéis instrucciones para construiros un sensor que os avisará de cuándo tenéis que regar las plantas

http://www.instructables.com/id/Arduino-smart-home-Environment-tree/

There is a star tree in our company called Facai tree, the meaning of getting rich. This tree stands together with us through thick and thin several years since our company set up. She sees the development of us and her growing speed also represents our company’s fast developing speed these years.