In order to answer your question as to who is responsible for paying the landscapers hired by your landlord for your rental, you need to carefully read the written lease agreement (assuming you have one) for your rental in that its terms and conditions control the obligations owed to you by the landlord and vice versa in the absence of conflicting state law.If you have a written lease agreement, carefully read its provisions concerning all provisions concerning maintenance of the rented unit and whose responsibilty it is. If there is no reference about a hired landscaper and payment for this cost, then it is the landlord's responsibility.If there is a provision in the written lease about this cost, then its provisions control.