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A rain garden is a rainwater management practice that collects water from impervious surfaces such as roofs, roads, and other impermeable surfaces. It temporarily holds this water in a trench with plants, preventing the flow of water into roads and indirectly into the bay, thus mitigating rainwater runoff.

Rain gardens serve multiple purposes, including facilitating the efficient use of rainwater, acting as a natural filter to clean rainwater runoff, replenishing groundwater resources, providing cost-effective and sustainable drainage solutions, creating a suitable habitat for local flora and fauna, and enhancing biodiversity.

Anyone who wishes to benefit from the incentive system can apply.

In our country, rainwater downspouts are directly connected to the sewage system, creating an additional burden on the sewage system during heavy rainfall. By separating clean water from rooftops and collecting it in a rain garden, underground water sources will be replenished and the city will become more resilient against climate change.

In order to achieve the project's goals and provide more efficient service to the city, the establishment of rain gardens in strategic locations is targeted. The priority criteria are defined in the Rain Gardens Incentive System Information Guide.

Evet. Teşvik sistemi başvuruları tüm vatandaşlarımıza açıktır. Başvuruların kılavuzda tanımlanan maddelerin bir ya da birkaçına uygun olması teşvik sisteminden yararlanmasını daha uygun hale getirecektir.

Citizens applying for Rain Gardens should make their selection based on the size of the roof area, rainwater downspouts, and garden area, taking into account the slope. Rain gardens are not very deep, so they can be created without professional assistance if safety precautions are taken into consideration. Important criteria to consider, although not mandatory, are defined in the Rain Gardens Incentive System Information Guide.

To properly size your rain garden, you need to conduct a permeability test in your garden. Based on the results of the permeability test and the size of your roof, you can appropriately size your rain garden. For detailed information on how to conduct the permeability test and sizing, you can visit our Sponge City İzmir website.

No, rain gardens do not require a lot of maintenance. Local plants native to Izmir are used in rain gardens, and these plants typically require minimal maintenance.

No, rain gardens only have water during rainfall when water is directed from roofs. The collected water quickly infiltrates through the permeable soil layer and is utilized by the plants in the rain garden.