The Cypress Bonsai tree does best in filtered or full sunlight.Cypress Bonsai trees can survive in cold weather and are extremely hardy but provide protection from freezing conditions in winter.Water moderately, keeping the bonsai tree moist at all times. The cypress bonsai enjoys frequent waterings over under watering.Fertilize your Cypress bonsai tree once every two weeks. We recommend using a bonsai fertilizer.Cypress bonsai tree may be repotted throughout most of the year, although, the best times for repotting are in the spring and fall. After repotting, water thoroughly and keep the bonsai tree in a shady location for several weeks so that new roots may grow.