Introduction
Are you looking to elevate the look and feel of your property while also protecting your septic system? Septic tank landscaping is a great way to do both of those things. By planting, mulching, or installing a rain garden near or around your septic tank you can elevate the efficiency of your system. Plus, you can help to prevent problems for yourself in the future, and improve the overall environment of your property.
Today, we’ll talk about seven of the best ways to landscape around your septic tank so that you have all the tools you need to help your space live its best life.

1. Planting Vegetation Around a Septic Tank
While septic tanks are typically not out in the open, their area still needs to be carefully considered as part of the overall landscaping design. Some plants can damage septic tanks and leach fields, so it is important to choose septic-safe vegetation. Fortunately, there are several great septic tank landscaping ideas to choose from.
Drought-tolerant native grasses and sedges are a good choice, as they require little water and will not grow too vigorously. Consider planting native grasses like Tufted Hairgrass or Idaho Fescue, which thrive in Washington’s climate and have non-aggressive root systems. Ornamental grasses like Berkeley Sedge can also add visual interest without threatening the septic system.
Groundcovers such as Pachysandra and Vinca Minor can help to prevent soil erosion, but for a more region-specific option, try Coastal Strawberry or Kinnikinnick. These native groundcovers are well-suited to Washington’s conditions, offer excellent erosion control, and have shallow roots that won’t interfere with the septic system.
When picking plants, it is also important to consider their root systems. Avoid planting trees or shrubs with aggressive roots, such as willow, maple, or cottonwood, as they could damage the septic tank or leach field. Instead, opt for smaller, non-aggressive shrubs like Douglas Spirea or Evergreen Huckleberry, both of which are native to Washington and can be safely planted at a reasonable distance from septic components.
With a little effort, it is possible to create a septic-safe landscape that is both beautiful and functional.
2. Placing Mulch Around a Septic Tank
Mulch is another fantastic way to add visual contrast and protect the area around your septic tank. It can help prevent erosion, keep weeds at bay, and retain moisture in the soil.
Just be sure to use an organic mulch, such as wood chips or shredded bark. Inorganic mulches, such as gravel, can damage septic tanks and leach fields.
To prevent erosion, apply a thick layer of mulch around the septic tank. You should also avoid placing mulch too close to the tank, as this could encourage roots to grow into the system. Instead, you can use mulch to create a beautiful septic-safe landscape with a little care.
3. Installing a Rain Garden Near a Septic Tank
Rain gardens are a fantastic way to manage runoff from stormwater. They can also be used to make your yard look nicer. When you choose plants for a rain garden, it is important to pick ones that can tolerate wet and dry conditions.
If you design your rain garden well, it can help reduce the water flow into the septic system’s leach field. This helps extend the life of your septic system.
4. Creating a Bog Garden Near a Septic Tank
Bog gardens are another great way to manage stormwater runoff and beautify the landscape. Bog gardens are similar to rain gardens, but they are designed to collect water that is high in nutrients. Instead of being absorbed by plants, the water is stored in the bog and eventually evaporates.
In addition, designing your bog garden well can help reduce the amount of water that flows into the septic system’s leach field. This can help extend the life of your septic system.
5. Choosing the Right Plants for Your Area
When selecting plants for a septic tank landscape, it’s important to choose species native to Washington. Plants like Tufted Hairgrass, Evergreen Huckleberry, and Coastal Strawberry are adapted to the local climate and soil conditions, requiring less water and fertilizer. These plants also support local wildlife, including birds and butterflies.
Avoid planting trees or shrubs with aggressive roots, such as willow or cottonwood, as they could damage the septic tank or leach field. Instead, consider smaller options like Douglas Spirea to create a septic-safe landscape that is both aesthetic and practical.

6. Installing a Windbreak
Windbreaks are barriers that are used to protect against wind damage. They can be made of living plants, such as trees or shrubs, or man-made materials, such as fencing. These structures are especially important in places prone to high winds, such as coastal areas or open plains.
Windbreaks can help to protect septic tanks and leach fields from wind damage. They also help reduce erosion and keep soil in place.
7. Properly Maintaining Your Septic Tank and Landscaping
Proper maintenance is essential for keeping septic tanks and leach fields functioning properly. Septic systems should be inspected every three to five years, and they should be pumped every three to five years as well. Regular maintenance will help to keep your septic system working properly for many years to come.
When landscaping around a septic tank or leach field, it is important to avoid placing any structures or plantings too close to the system. Septic tanks and leach fields need to function properly, and they need to have enough space to do so. With a little planning, you can create a septic-safe landscape that is both beautiful and functional.
Looking For Septic Tank Landscaping Ideas?
At Goebel Septic, we understand the importance of keeping your septic tank functioning properly. Family owned and operated in the beautiful-but-wet Western Washington since 1979, we have all the knowledge and experience that comes with a lifetime of serving our community. We care about not only helping get your system up and running, but helping you understand how to keep it that way. Whether it’s a septic emergency or routine maintenance, we’ve got you covered.
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