We love to use flowers such as Lobelia cardinalis, Iris versicolor and Juncus effusus at the lowest points because they both do very well in super moist spots. Places that are less saturated would have plants like Liatris spicata, Mountain mint, coneflowers, aster, bee balm, etc. Rain gardens look best when there’s a base of grasses that act as a sea of green and then have flowers installed in clumps or as individuals to add seasonal color.
If you build the rain garden correctly, you can manage nearly all of the rainwater coming off your roof or driveway. This means hundreds, if not thousands, of gallons of runoff will be dealt with in a more natural way and you'll be doing your part to help the environment.
The cost of a rain garden can vary and is based on several factors including:
- The area of the rain garden
- The depth of the rain garden
- Plant choice
- Whether or not the soils on site can be reused, etc.
The typical range for a professionally installed rain garden is about $30-45 per square foot.