The essential perpetual care that the municipality agrees to give shall consist of care of the cemetery generally, and shall include, but is not limited to, mowing of all lots and graves at reasonable intervals, resodding, seeding, and filling in sunken graves, sodding the surface of the graves to lot level, removing dead flowers and trimming trees and shrubbery when necessary, raking and cleaning the lots and straightening of tilting stones or markers, but shall not include repairing or replacing markers or memorial structures of any nature, except when the need for repair or replacement is directly caused by the municipality. (Code 1975 § 8-262)