Bay-Friendly Living Tip: Plant a Rain Garden

Bay-Friendly Living Tip: Plant a Rain Garden

Mackensie duPont Crowley, communications specialist

Jed Thorp, Save The Bay’s advocacy coordinator, channeling rainwater into the early phases of his rain garden.

Up to half of all polluted runoff, one of the main causes of beach closures and fish kills, comes from residential properties. The grass in your yard is not the most effective surface material to handle this rainwater, which washes pollutants like pesticides, dog waste, and yard debris into the Bay through storm drains; in fact, a rain garden soaks up 30% more water than a traditional patch of grass.

Rain gardens are shallow, planted depressions that absorb rainwater from roofs, driveways, and other hard surfaces, keeping it from running into the road and down storm drains. According to the Rhode Island Department of Environmental Management, by trapping stormwater and allowing it to seep naturally into the ground, rain gardens not only minimize runoff, but also naturally remove pollutants, reduce flooding, and help recharge groundwater supplies.


    • Plant your rain garden at least 10’ from your foundation. Direct your gutter downspouts toward the rain garden.
    • Till the soil to a depth of 18” and add compost or sand as needed to make a well-drained soil.
    • Make sure the center of the rain garden is a 3”- 8” depression (lower than the edge). The depression must be flat, always!
    • Plant a combination of native flowers, shrubs, trees and grasses, putting tallest plants in the deepest part of the garden. Planting native also provides habitat for birds, butterflies, and beneficial insects.
    • Use 2” of mulch to retain moisture.

For more information on rain gardens, check out these resources:

Soak Up the Rain: Rain Gardens, EPA:

Rain Gardens, URI Stormwater Solutions: 

Rain Gardens, UConn:

How to Plant a Rain Garden, Northern RI Conservation District:

And check out the full Bay-Friendly Living Guide for more tips on how to reduce and manage run-off pollution!


*Please note:  Be sure to access the Johnson & Wales University Harborside Campus through the main entrance on Harborside Blvd. Your GPS may suggest taking Ernest Street to JWU’s Shipyard Street entrance, but that route requires a key card for entry.  

From Route I-95 North or South, take Exit 18 (Thurbers Avenue). Head downhill on Thurbers Avenue to US Route 1A (Allens Avenue). Turn right onto Allens Ave. Continue southbound on Allens Ave. into Cranston, where Allens Ave. becomes Narragansett Blvd. Turn left onto Harborside Blvd. at the traffic light by the Shell gas station. Follow Harborside Blvd. through the Johnson & Wales Harborside Campus. At the end of Harborside Blvd., turn right onto Save The Bay Drive. Save The Bay Drive becomes a circular, one-way roadway as you approach the Bay Center. Parking is available in four guest lots after you pass the main building. Enter the building through the main entrance.


September 28, 2020

Dear Friends, Supporters and Community Members, 

At this time, Save The Bay’s facilities in Providence, Newport and Westerly remain closed to the public in response to COVID-19.

Save The Bay is now offering limited volunteer opportunities and Seal Tours and Nature Cruises, each with new policies and procedures for the health and safety of our guests and volunteers.

Our staff remains dedicated to working on our mission to protect and improve Narragansett Bay from home. As always, we are accessible via email (listed on our website), or on FacebookInstagram or Twitter.