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Home > Greening Rockville > Watersheds > Stormwater Management: Rain Gardens
Sustainable Rockville


Stormwater Management:
Rain Gardens


Creating a residential rain garden is a great way to capture runoff from leaving your property.  Rain gardens can be beautiful additions to your landscape; they are aesthetically pleasing and provide wind breaks, absorb noise, provide wildlife habitat and reduce the urban heat island effect.  By creating a small bermed depression, amending the soils and using native plants, you can capture thousands of gallons of runoff.  

Tips for creating your own rain garden:

  1. Research rain garden techniques and implementation to familiarize yourself with successful models, such as this sample layout.
  2. Locate a good spot for your rain garden.
  3. Your rain garden should be located at least 10 feet from the house. A natural site is a low spot in your yard.  It is best if the raingarden is placed in at least half a day of sunshine and there should be a natural slope from the water collection area (your roof or driveway) down to the rain garden.
  4. Call Miss Utility before you dig.
  5. Acquire appropriate permits to make sure that you are not in a right-of-way.
  6. Remove sod and dig about 2½ ft deep.
  7. Amend the soils with two to three inches of compost.  Soil mix should be 50 percent sand, 25 percent organic and 25 percent topsoil
  8. Add native plants to the garden.
  9. Use at least 3 inches of mulch.

Rain garden resource links: