When to water it depends on the season. In summer, it's better to water it in the morning and evening. It's best to put it before 8 o'clock in the morning and around 5 o'clock in the afternoon. You need to avoid the time of noon. Because the temperature will be very high at noon, it will produce a lot of heat at this time, which will have a negative impact on the flowers. The water will cool the plant, and the root hairs below will block absorption because of the stimulation of the low temperature. Winter can choose at noon, the temperature will be relatively high, reduce the temperature difference, avoid causing colder stimulation to plants. In spring and autumn, there are no so many restrictions on time. It's OK in the morning or at noon.
Although it likes to moisten some living environment and needs water, it can't have too much water and can't accept the water in the basin. Especially in the late autumn to winter, basin soil should be a little dry inside, water will lead to root rot.