What Can You Put on Top of a Septic Field

What Can You Put on Top of a Septic Field

Septic fields, commonly known as drain fields, play an integral role in the wastewater treatment process for many homes not connected to municipal sewage systems. Responsible homeowners prioritize the correct coverage to ensure the longevity and proper functioning of these systems.

Top coverings for septic fields not only prevent erosion but also ensure efficient waste treatment. Grasses, certain flowers, and low-growing plants are ideal, while trees, shrubs, and edible gardens can be problematic.

A correctly maintained septic field cover serves dual purposes: it beautifies the landscape while ensuring that the wastewater treatment system remains efficient and functional.

Role of Septic Field Covers

Septic field covers are more than aesthetic embellishments; they are protective shields. Their primary function is to guard the underlying septic system, optimizing its lifespan and performance.

Functionality and Protective Layering

The right covers act as a protective barrier against external threats, such as heavy rainfall or direct sunlight. This layer maintains the field’s moisture balance, facilitating the breakdown of waste.

Ensuring Longevity and Proper Operation

Regular maintenance, combined with appropriate covers, can extend the septic field’s operational life. A well-maintained cover reduces the risk of system blockages and failures.

Suitable Plant Covers

When considering septic field covers, it’s vital to balance aesthetic appeal with functional value. The goal is to select plants that beautify the landscape without compromising the septic system’s health.

Grasses

Grasses are often the first choice for covering septic fields, primarily due to their shallow root systems. They are less likely to penetrate deeply, avoiding potential disruption of the system.

  • Ryegrass: A fast-growing option, ryegrass offers quick coverage. It thrives in various conditions, making it versatile for different regions.
  • Fescue: Resilient to foot traffic and requiring minimal maintenance, fescue varieties are particularly adept at preventing erosion.
  • Bluegrass: Loved for its lush green appearance, bluegrass is not just beautiful; it’s also a hardy choice that can tolerate varying moisture levels.

Flowering Plants

Flowering plants can introduce color and vibrancy to the landscape above the septic field. When selecting flowers, consider their root depth and growth pattern.

  • Marigolds: These bright blooms have shallow roots, making them an attractive yet safe option. Additionally, they are natural insect repellents, providing an added benefit.
  • Lavender: Aside from its pleasant aroma, lavender is drought-resistant, ensuring that it doesn’t draw excessive moisture from the septic field.
  • Daylilies: With their resilient nature, daylilies can thrive in different conditions. Their thick clumps also help in preventing soil erosion.

Low-Growing Plants

Low-growing plants, or groundcovers, are preferred for their ability to spread horizontally, providing adequate coverage without deep root intrusion.

  • Creeping Thyme: This aromatic herb not only adds beauty but also releases a pleasant scent when stepped on. It’s drought-tolerant and grows densely, reducing weed intrusion.
  • Sedum: Available in various colors and shapes, sedum varieties are succulents, storing water in their leaves. They’re ideal for regions with sporadic rainfall.
  • Clover: Requiring less water and being naturally nitrogen-fixing, clovers can improve soil health. They’re also resistant to pests, cutting down the need for chemical treatments.

Unsuitable Covers

It’s just as crucial to be aware of what not to plant over a septic field. Some plants and structures can compromise the system due to their invasive nature or potential contamination risks.

Trees and Shrubs

While trees and shrubs can provide shade and aesthetic appeal, their extensive root systems can be detrimental to septic systems.

  • Willows: Known for their water-seeking tendencies, willow roots can easily infiltrate a septic field, leading to potential blockages.
  • Maples: While beautiful, many maple varieties have expansive root systems that can delve deep, potentially disrupting the septic infrastructure.
  • Shrub Varieties: From boxwoods to azaleas, many shrubs have roots that can penetrate deeper than expected. It’s best to consult with a local nursery before considering any shrubs.

Edible Gardens

Planting edibles over a septic field might seem like a space-saving idea, but there are health concerns associated with potential contamination.

  • Root Vegetables: Plants like carrots and potatoes, which grow underground, pose a direct risk due to potential contact with the septic system’s effluents.
  • Leafy Greens: Spinach, lettuce, and similar greens have a rapid growth rate, which means they might uptake contaminants faster.
  • Fruiting Plants: Tomatoes, cucumbers, and similar plants might seem safer due to their above-ground fruits, but there’s still a risk if roots access contaminated moisture.

Non-Plant Options

For those who prefer low-maintenance, non-plant alternatives, there are still options that offer both functionality and visual appeal.

Gravel and Stone

These inorganic materials can be beneficial for the septic field while enhancing its aesthetic value.

  • Pea Gravel: This small, rounded stone is not only visually pleasing but also aids in efficient drainage.
  • River Rocks: Their smooth surfaces can be pleasing to the eye, and they also prevent soil erosion, especially during heavy rains.
  • Lava Rocks: Their porous nature can assist with moisture management, ensuring the septic field remains neither too dry nor too wet.

Decorative Elements

If homeowners opt for decorative additions, they should ensure that these elements are lightweight and don’t exert undue pressure on the septic field.

  • Birdbaths: Opt for smaller, easily movable designs to prevent soil compaction.
  • Garden Statues: Lightweight resin or plastic statues can provide a visual focal point without the risks associated with heavier stone or metal counterparts.
  • Wind Spinners: These are not only beautiful but also have the added benefit of being elevated, ensuring no impact on the soil below.

Maintenance Tips

An essential aspect of septic field health is regular maintenance. While the right cover can protect the system, periodic checks and care routines can prevent potential issues from escalating.

Regular Inspections

Routine inspections help homeowners stay ahead of potential issues. This proactive approach can save time, money, and stress in the long run.

  • Surface Check: Monitor for signs of plant overgrowth, pooling water, or any other visible irregularities that might indicate underlying issues.
  • Root Control: For those who have plants bordering on the aggressive side, it’s essential to check for and manage root growth regularly.

Avoiding Heavy Equipment

Heavy machinery, vehicles, or even storage sheds can exert undue pressure on the septic field, leading to potential damages.

  • Machinery Use: Whenever possible, use manual tools for maintenance tasks. If machinery is absolutely necessary, ensure it’s lightweight and used sparingly.
  • Vehicle Warning: Never park cars, trucks, or any other vehicles on the septic field. The weight can cause soil compaction and damage to the pipes below.

Common Questions Addressed

Are there safety concerns with septic field covers?

Yes, using inappropriate covers, especially edible plants, can lead to contamination, posing health risks.

How often should septic field covers be inspected?

It’s advisable to inspect covers at least bi-annually, though more frequent checks can prevent potential issues.

Can I use artificial turf over a septic field?

While artificial turf won’t interfere with root systems, it might hinder soil breathability, which is essential for wastewater treatment.

Conclusion

Septic fields, a cornerstone of wastewater management for countless homes, deserve meticulous attention when it comes to their top coverings. Selecting the right covering ensures not just the system’s efficiency, but also its longevity, offering peace of mind to homeowners. Recognizing the pivotal role of septic field covers, homeowners can make informed choices, blending functionality with aesthetics. Ultimately, a harmonious balance between these aspects will pave the way for a thriving and long-lasting septic system.