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Water Quality Report
Lakeside Gardening Tips
Charlie Hamilton
Happy Summer! Leesville Lake Water Quality is very good and will support all of your swimming, fishing and recreational activities. One way to help keep Leesville Lake Water Quality great is to create Buffer Gardens. I’ve excepted from an article by John Rupnik, Chairman, SMLA Buffer Landscaping Committee to describe how to create a Buffer Garden:
Buffer gardening is one of the easiest ways that lakefront homeowners can improve the water quality of our lake. The slowing of rain coming off the shoreline reduces erosion and also provides a filter for water that does enter the lake.
What Is the Best Size for a Buffer Garden?
The ideal size for a buffer garden depends on the slope of your lot and shoreline. The steeper the shoreline and lot, the deeper (wider) the garden should be.
The goal is to reduce water runoff. The steeper the lot, the faster the water wants to drain off it. Your garden should be sized accordingly – as wide as needed to capture flow – from 10 feet deep in gently-sloped shorelines to 30 feet or more on steeper lots.
Landscaping for Gently Sloped Shorelines
Many gently sloped shorelines have planted lawns from the home down to the riprap. Heavy rain will cause water to flow over the grass and bring lawn fertilizer and/or pesticides directly to the lake water. This unintended introduction of nutrients is one cause of harmful algal blooms.
I have heard concerns that a buffer garden will inhibit the view, whereas the grass will not. Gardens can be created using low lying vegetation that do not interrupt the view.
Should I Use Mulch Near the ShorelIne?
Mulch presents a consistent, well-maintained look for the shoreline and can help inhibit nutrient, pollutant and sediment runoff. But during high-water events much of this mulch may end up in the lake.
Mulch can be used on gently sloped lots since the gentle slope does not trigger heavy runoff. The mulch will help to capture this runoff along with the deeply-rooted plants within the mulch bed.
The more recently the mulch was laid, the more likely you will lose some of it. The older the mulch, the more likely it has settled and firmed up. Also, if under a permit, mulch is the only material authorized to use at the shoreline.
Landscaping for Steeply Sloped Shorelines
For steeply-sloped lots, the choice of plants and size/density of the garden become important. The steeper the lot, the deeper and denser the buffer garden needs to be. Larger plants are needed.In many cases, the buffer garden can incorporate foliage that is already there, such as mountain laurels and existing trees. No mulch is needed when plants are dense and planted right to the riprap.
Planting Below the 620 Foot Elevation Line
AEP supports plants that are native to Virginia. Natives are deep rooted and are hardier in our climate. In fact, native plantings are required if you are removing vegetation and therefore need an AEP permit.
The Buffer Landscaping section of the SMLA website offers a list of native plants to consider. You will also find more resources for planning and planting your buffer garden.
Many thanks to our LLA Water Quality Committee : Debbie Oliver, Kathleen Giangi, Dave Waterman, Tony Capuco, and University of Lynchburg Limnologist Dr Tom Shahady for all their efforts to keep Leesville Lake healthy!
Charlie Hamilton
LLA Water Quality Chair
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