So you’ve decided to deal with runoff and drainage problems in your backyard by creating a rain garden. Or perhaps you’re doing it because you want to help the earth.
Whatever your reason, you’re probably asking yourself: How do I do this?
Making a rain garden isn’t complicated, but there are a few things to keep in mind.
Probably the most important factor is where to put your rain garden. Experts say that the rain garden should be placed at least 10 feet from the house so that the runoff water does not seep into the foundation.
Also, you will want to put your rain garden in the sun or in partial shade, and not under a tree. The runoff, if diverted directly onto tree roots, could cause damage and rot to the roots.
People may also think that soggy or boggy places in the yard are the best for rain gardens. However, if there is a place of poor drainage, it’s not where you want to put the rain garden. The idea is to let the water trickle down slowly into the ground. If you divert more water into a poor drainage area, it will just get soggier and marshier. Water in a rain garden should only stay there for a few hours before soaking into the earth.
In addition, don’t put the rain garden over a septic system, or near wells or underground utilities.
Once you know where you are placing your rain garden, then it’s time to choose plants. You will want to choose deep-rooted native plants and grasses that are hardy and can endure the stress of brief periods of water pooling, as well as dry spells. Planting seeds isn’t recommended; instead, purchase plants in containers that already have strong root systems.
If you are unsure which plants to choose, you may want to consult with a garden professional who has experience with rain gardens to give you some advice.
The cost of installing a rain garden depends on many factors, including the size of the project, plants that are used, extensions for downspouts, mulch, gravel, and other additional materials. Also, you will save money if you can construct and plant the rain garden yourself, rather than hiring a landscaper.
At first, you’ll need to water your new plants during dry periods until they become established. After that, you won’t need to water them so much. Some weeding may be required as well.
After the first to second year, you shouldn’t have to perform very much maintenance on your rain garden. Occasionally you’ll want to add more mulch, replace plants that have died, and do some cutting back of overgrown plants.
Also, when it’s raining or just after, you may want to have a look at the rain garden to make sure water is being absorbed into the ground within a reasonable period of time.
