How to landscape a drainage swale,small landscape trees for northeast,deck design pictures - Test Out

02.05.2014
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You can turn drainage solutions into features that enhance your landscape—and protect natural waterways.
Swales can be part of an area’s natural landscaping, or they can be created to help ensure proper drainage, minimize runoff or capture storm water.
In areas that receive more annual rainfall than we do here in sunny Southern California, swales are considered a more efficient way to capture rainwater than rain barrels.
Locally, swales can be used for this purpose, but they are more often an integral part of the drainage plan for residential, commercial and municipal properties.
More commonly referred to by laypeople as ditches or gutters, swales are often found along sloping driveways, adjacent to roads and parking areas, incorporated into golf courses, winding along the contours of hills on farms and in backyards, or along curbs to guide water away from roadways and into storm drains. The primary purpose of most swales in dry climates is to protect structures and to slow down or divert water. While it might seem like our drought-prone state would not need much in the way of excess water management, drainage swales are a critical part of flood prevention and help keep our ground water cleaner. And even though we do not get as much rain as folks who use swales as part of their irrigation system in wetter climates, we can still maximize our use of the rainfall we do receive by strategically including swales in our landscape design. Some homeowners consider swales unsightly and would rather have a nice, level lawn or a smooth surface along their driveway. The issue is, a manmade swale on your property was put there for a reason, and natural swales are serving a necessary water-carrying service as well, or it would not have naturally formed. If you really hate the look of your swale or would like to landscape your yard in a way that does not easily accommodate an existing swale, you may have some options available to you.
For example, if you have a swale on your property that is no longer necessary because your property’s drainage plan has changed, you may be able to fill in your swale. It may also be possible to create another swale in a less offensive location to make your current swale obsolete.
The most important thing to keep in mind is that swales serve a very important purpose, and no homeowner without an engineering degree or years of experience in grading and groundwork should mess with the swales on their property without calling in the professionals.


So just because it looks like the hillside in your backyard is sloped in a manner that does not put your home in danger, this does not mean that the swale directing water coming from that hillside is not necessary.
That swale could be saving your neighbor’s house from flooding and saving you from a lawsuit. Landscape architects, engineers and contractors who specialize in grading and groundwork can survey your property and determine the best ways to enhance drainage and direct water while keeping structures and landscaping safe, making sure you abide by local ordinances and ensuring that your neighbors will not bear the brunt of poor drainage decisions. Additionally, governmental agencies are getting more serious about any type of residential or commercial landscaping changes that could affect groundwater.
This means that you may need a permit or there may be ordinances with which you must comply aside from those already tied to your property’s drainage plan. If you have existing landscaping, you may be able to work with your landscape architect to add a swale to your current design.
If you are in the process of designing your landscaping from scratch and have sloping areas in your yard, work with your landscape architect to ensure swales or other drainage options are included to divert water away from outdoor living areas and structures and to incorporate these drainage options into the design as seamlessly as possible.
Before we dive into some of the many options you have when landscaping swales, we should first address a few things to avoid. For example, if you need to put a solid fence across a swale, you need to make accommodations to allow the water to flow either below or through that section of fencing unobstructed. If you have swales with berms, trees can do quite well when planted on the berms or below the swale, but should not be planted in the swale, since this can also impede water flow.
If you plan to plant inside the swell, you will need to be careful not to significantly change the grading, unless the swale is now obsolete, and your intention is to fill it. While it may seem like these utilitarian trenches are completely unusable or impossible to landscape in an attractive way, swales actually provide some great landscaping opportunities, including some that are particularly well suited for drought prone areas. If you have one or more swales running through a natural grass lawn (and plan on keeping your natural grass), seeding or laying sod in your swale is a great way to quickly landscape it and make it less noticeable. If you have a swale running through an area where you would like to install an artificial grass lawn, this should not be an issue. Talk to your landscape designer or synthetic turf installer about your particular situation to make sure this is a good choice for you. Artificial grass is a great choice for sloping areas and can be used to help control erosion, so it is an easy choice for the sloping sides of swales. Again, the similar appearance may make it difficult to see that the ground is not level so supervise pets and children to ensure their safety when playing around the swales.


This is one of the most common choices for swale landscaping, and it is a great way to manage runoff, limit erosion, slow water flow and allow rainwater to more efficiently infiltrate into the soil. However, it can give your swale an even more utilitarian look and can emphasize that you have a swale running through your landscaping. Turfstone pavers are a type of permeable paving stone that can bring stability to gently sloping swales.
Homeowners who choose this option for their swales often appreciate the visual appeal of grass or other living ground covers but want to avoid erosion on the sides of their swales and may want to use their swales for other purposes — such as walkways. Shallow swales, or even deeper swales with wide bases, can be used as seasonal walkways in arid climates. In areas like Southern California where our swales are usually dry, we can design swales as multifunctional landscaping features that serve as water management systems and as walkways.
As long as you do not impede the flow of water, you can line your swale with gravel and place stepping stones along the base to create a walkway. Alternatively, in a shallow swale, you can install a durable, attractive, paving stone walkway.
The movement towards xeriscaping and other drought-tolerant styles of landscape design definitely have most of us using more rocks, gravel and native plants in our designs.
Swales are particularly well suited for this type of landscaping, especially if you are interested in including a water-free water feature in your yard. Dry creek beds are increasingly popular these days, particularly because they bring the look and feel of a water feature into your landscape design without actually wasting any water in the process.
By using river rocks of various sizes to create what looks like a natural creek bed, you can bring an entirely unique look and texture to your landscaping design to enhance the overall visual appeal of your yard, while maintaining the function of your swale. If your swale has a berm, this is a great place to plant flowers, trees or a vegetable garden.
If not, you can plant along the sides of the swale to take advantage of soil moisture that will be present whenever the swale is performing its primary function of capturing and directing water. Our constant state or drought may make a rain garden seem like an idea better suited for our friends in the Pacific Northwest, but small swales, such as those that move water from house gutters to drains or dry wells, can make great rain gardens.



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