Generally, it is watered once every 3-4 days. But it's better not to be too fixed, because after the fixed times of watering, it is likely to appear the state of drought or water, which is not good for plant growth
In addition, the water requirement of plants in different growth periods is also different. When it is just planted, it is usually once every 2-3 days, and the water volume should be controlled well. During the period of vigorous growth, it needs a large amount of water, which can be watered once a day or two. Also need to control water during flowering, you can extend the watering time, 4 - 5 days watering will be OK.
When watering it, it is best to use acid water. If it is convenient at ordinary times, you can collect some rainwater to water the flowers. Water the plant thoroughly, avoid watering it half, and do not water too much. Water should be poured into the soil, so that the root system of the plant can absorb water very well. Before watering, it is necessary to judge whether the plant needs watering. If watering when the soil is wet, it is easy to have water accumulation, and it is easy to rot the root.
