Learning about rain gardens
One of the great things about this new era of eco-awareness is that many things that save energy, money or materials are being ‘discovered’ - or rediscovered is probably the more correct term. Even more correct: people who knew about these techniques and habits long ago are sharing them now with people who are more willing to listen, because of the present concerns about the climate and energy.
‘Rain gardens’ are one of the more unique ways to help the environment in developed areas. A rain garden is basically a bit of landscaping that absorbs rainwater runoff before it gets into drains or flooded creeks. The idea is to reduce the amount of water and added stress that goes into normal city drains or into suburban runoff creeks. The ideal spot for rain gardens in suburban areas are right next to sidewalks and driveways, where they will help stop water from flowing onto the road, and also under the eaves of houses, where the garden will catch water runoff from the roof.
It seems many municipalities are getting into the act in the US and encouraging the creation of rain gardens, as well as using them in road construction plans, which helps reduce the load on drainage systems, lowering overall costs. Another benefit is that runoff water going through a mulched rain garden with shrubs and layers of soil and gravel can remove up to 99% of the toxins in the water - good news for people who live in an aquifer recharge zone and worry about acid rain.
For many people, doing DIY landscaping work around their home is a fun weekend project, and creating a rain garden is another great way to get dirt under your fingernails and bring insects (and therefore birds) closer to home.
A really good overview of rain gardens is shown on the Brooklyn Botanic Garden website, and also take a look at the huge Rain Gardens of West Michigan site, with loads of guides about what to plant and how to go about making your first rain garden.
Leave a Reply