A rain garden is a dry depression in the landscape that is planted like a garden and allows rainwater to infiltrate into the ground rather than run into storm sewers where it flows untreated into our lakes and waterways.
Allowing rainwater runoff to soak into the ground improves the water quality of our rivers and lakes, reduces the risk of localized flooding, and recharges aquifers.
Improves water quality improvements
Reduces risks of flooding
Adds beauty and value to neighborhoods
Provides wildlife habitat to attract beneficial birds, butterflies, and dragonflies
Like any perennial flower garden, rain gardens need to be watered the first year and weeded semi-annually. Filling in bare spots with mulch is also recommended.
Rain gardens hold water for no longer than 48 hours; far shorter than the 7 days of standing water needed to breed mosquitoes. In between rainfalls, the rain gardens are dry.
Why use native prairie plants?
Prairie plants native to Minnesota have deep roots that help break up compacted soils, even clay, to infiltrate water. They are also naturally drought, flood, and pest resistant.
Join Clean River Partners and City of Northfield staff to learn how to plant a rain garden on Thursday, March 21 from 6 to 9 p.m. at the Northfield High School in room H122 located at 1400 Division Street South. Rain garden...