PT Pos Indonesia Karanganyar is a State-Owned Enterprise (BUMN) that has the duty and function as the executor of the Universal Postal Service (LPU) and the Public Service Obligation (PSO) to ensure the availability of postal services throughout the entire archipelago, in accordance with Law Number 38 of 2009 concerning Postal Services. Karanganyar Regency is known as a region rich in natural resources, particularly those that support the cultivation of horticultural crops. This condition has encouraged the emergence of several horticultural business actors in the area. In an effort to provide optimal services, PT Pos Indonesia Karanganyar continues to innovate, one of which is through a specialized delivery system for plants. The purpose of this observation is to understand how the domestic plant delivery service system is implemented by PT Pos Indonesia Karanganyar and to identify the various obstacles encountered during the service process. The type of observation used in this study is descriptive qualitative. This approach focuses on the interpretative process of non-numeric data obtained through observation, interviews, documentation, and literature review techniques. The domestic plant shipping service process begins with the package preparation stage, which can be carried out either online or offline, followed by data input through PT Pos Indonesia's service system. The packages must then undergo a quarantine process conducted by the Indonesian Agricultural Quarantine Agency, with service rates determined for both shipping and quarantine services. The available service products include regular and cargo options, continuing through to the final delivery process. Complaint services can be accessed through the official contact channels of PT Pos Indonesia Karanganyar. Furthermore, this study also identifies several obstacles, such as the limited schedule of quarantine services and the low volume of plant shipments at PT Pos Indonesia Karanganyar.