If you live in an area where rainfall is one inch or less (2.54 cm) each week, you will need to water your cannas once a week.
Uma uhlala endaweni egcwele isomiso futhi uthola imvula engaphansi kwe-intshi ngeviki (amasentimitha ama-4 ngenyanga), kuzodingeka ukuthi unisele izitshalo zakho ze-aster phakathi nezinyanga ezishisayo zasehlobo.