Maintenance of flower holly?

The maintenance of flower holly needs to be watered every 20-30 days, and fertilizer can be applied 2-3 times a year, mainly nitrogen fertilizer and organic fertilizer; for beauty or garden art requirements, pruning can be carried out in summer to cut off overlong and dense branches to improve plant ventilation; when diseases and insect pests are found, prevention and control should be carried out according to different diseases.