<![CDATA[Abstract Limited water availability and the suboptimal utilization of rainwater remain major constraints in developing productive home gardens in Pematang Gubernur Village, Bengkulu City. This community service activity aims to enhance community capacity in water management through the implementation of a rainwater harvesting (RWH)-based irrigation system and to improve household yard productivity. The method employed was a Participatory Action Research (PAR) approach, consisting of problem identification, socialization, technical training, system implementation, as well as mentoring and evaluation stages. The results indicate a significant increase in planting frequency from 1.00 to 2.40 times per period (p < 0.05). In addition, there was an improvement in community knowledge, technical skills, and behavioral changes in water management and yard utilization. The implementation of the RWH system proved to provide a sustainable and low-cost alternative water source. This activity demonstrated a tangible impact on enhancing water security and yard productivity and has strong potential for replication in other areas with similar conditions. ]]>
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