What is a rain garden?

A rain garden is specifically designed to manage stormwater runoff, making it a crucial component in sustainable landscaping practices. This type of garden is constructed as a planted depression that allows rainwater to collect and infiltrate into the ground rather than flow into storm drains or streets. The plants selected for a rain garden are typically native species that can tolerate both wet and dry conditions, allowing them to thrive in the fluctuating moisture levels present in the garden.

The design of a rain garden not only helps in managing stormwater but also promotes filtration of pollutants, recharges groundwater, and can enhance habitat for local wildlife. By capturing and utilizing rainfall, rain gardens play a significant role in mitigating flooding and reducing the burden on municipal stormwater systems.

Other choices describe different concepts or garden types that do not align with the primary function of a rain garden. For instance, a garden designed for rain-fed crops focuses on agricultural practices rather than stormwater management. Wetland gardens specifically thrive in permanent wet conditions, contrasting with the intended variable moisture levels of a rain garden. Lastly, a decorative garden with minimal water needs typically aims to reduce water use without the stormwater management aspect, which is central to the concept of a rain garden.