Is it legal to plant flowers on public roofs? Is this the scope of property management? What should I do?

If there is no special agreement when buying a house, the roof belongs to the public part of the building and the property right belongs to all the owners of the building. The case involved the landlord planting flowers on the roof without the consent of other owners, and the infringement of planting flowers led to water seepage in the house. You can ask the landlord to remove obstacles (remove flowers and plants), stop the infringement, compensate for losses, and ask the property management company to perform management duties in accordance with the property management contract. If negotiation fails, a lawsuit may be brought to the people's court.

Good luck!