Design of a small rain garden plan

Quick answer：

A small rain garden is a landscaped area designed to capture and infiltrate rainwater that falls on the roof or paved surfaces. The design of a small rain garden typically includes a flat or slightly sloped surface with a shallow depression that collects water, surrounded by native plants that can tolerate occasional flooding. The plan should consider factors such as soil permeability, water flow, and the placement of plants to ensure effective water infiltration and biodiversity.