Water: watering once a week, as mentioned above, the soil should be drained, moist soil is not conducive to excessive breathing roots, leaves and plant water would cause the heart to turn yellow. Should be watered in the morning and let it evaporate before dark. You can also use bark mulch around the plants to limit the evaporation of water. Especially in dry or hot weather, should mulching. Sun: The best planted in a sunny place, they are quite resistant to frost. Flowering: semi-evergreen plants. They begin to bloom in the spring from April to June, long flowering period. Pruning: If there is no proper pruning their plant types can be quite messy. After flowering, cut the stems should topping or you can use a pair of scissors or garden pruners to accomplish this task.