Plastic edging is a popular choice for homeowners looking to define garden beds, walkways, and driveways. It’s affordable, readily available, and comes in a variety of styles and colors. However, one of the most common frustrations with plastic edging is its tendency to shift, buckle, or even pop out of the ground entirely. This article will delve into the reasons why plastic edging fails and provide practical solutions to keep it firmly in place, ensuring your landscaping remains beautiful and well-defined.
Understanding Why Plastic Edging Fails
Before we jump into solutions, it’s crucial to understand the underlying causes of plastic edging failure. Several factors can contribute to this issue, and addressing them proactively is key to a long-lasting installation.
Soil Conditions and Preparation
The type of soil you have plays a significant role. Loose, sandy soil provides little resistance, making it easy for edging to shift. Similarly, overly compacted clay soil can make it difficult to drive stakes in properly, leading to instability. Proper soil preparation is paramount. This involves removing any rocks, debris, and roots that might interfere with the edging. Amending the soil with compost or other organic matter can improve its texture and drainage, providing a more stable base for the edging.
Incorrect Installation Techniques
One of the most common mistakes is improper installation. This includes not digging deep enough, failing to use enough stakes, or spacing the stakes too far apart. Each type of edging has specific installation guidelines. It’s essential to read and follow the manufacturer’s instructions carefully. Rushing the installation process or cutting corners will almost certainly lead to problems down the line.
Environmental Factors: Temperature and Weather
Plastic is susceptible to temperature changes. In hot weather, it can become more flexible and prone to bending and warping. Conversely, in cold weather, it can become brittle and more likely to crack. Weather patterns, such as heavy rain or frost heave, can also exert significant pressure on the edging, causing it to dislodge. Consider these environmental factors when selecting and installing your edging.
Edging Quality and Type
Not all plastic edging is created equal. Cheaper, thinner edging is more likely to buckle and warp than thicker, more robust options. Different types of edging are also designed for different purposes. For example, some are better suited for straight lines, while others are more flexible for curves. Choosing the right type of edging for your specific needs is critical for its long-term stability.
Effective Strategies for Securing Plastic Edging
Now that we’ve covered the common causes of failure, let’s explore practical solutions to keep your plastic edging securely in place. These strategies range from soil preparation techniques to proper installation methods and reinforcement options.
Proper Soil Preparation: The Foundation for Success
As mentioned earlier, soil preparation is the foundation for a successful edging installation. Here’s a detailed breakdown of the steps involved:
- Clear the Area: Begin by removing all existing vegetation, rocks, and debris from the area where you plan to install the edging. This includes removing any roots that could impede the edging or stakes.
- Dig a Trench: Dig a trench deep enough to accommodate the edging and allow for a portion of it to be buried below ground level. The depth will depend on the type of edging you’re using, but a general guideline is to bury at least half of the edging’s height.
- Amend the Soil: If your soil is particularly poor, amend it with compost, peat moss, or other organic matter. This will improve drainage, aeration, and overall soil structure, creating a more stable base for the edging.
- Compact the Soil: After amending the soil, compact it firmly using a hand tamper or roller. This will help prevent the edging from sinking or shifting over time.
- Level the Trench: Ensure the bottom of the trench is level before installing the edging. This will prevent unevenness and ensure the edging sits flush with the ground.
Mastering the Installation Process
Correct installation is paramount. Here’s a step-by-step guide to ensure a secure and long-lasting installation:
- Choose the Right Stakes: Select stakes that are appropriate for the type of edging you’re using and the soil conditions. Longer stakes generally provide more holding power, especially in loose soil. Many edging products come with their own specific stakes, and it’s generally best to use these.
- Proper Stake Spacing: Follow the manufacturer’s recommendations for stake spacing. A common mistake is spacing the stakes too far apart. Closer spacing provides greater stability, especially along curves. As a general rule, space stakes every 2-3 feet along straight runs and every 1-2 feet along curves.
- Driving the Stakes Straight: Use a rubber mallet to drive the stakes into the ground. Ensure the stakes are driven straight and flush with the top of the edging. Avoid using a metal hammer, as this can damage the stakes and the edging.
- Overlapping and Connecting Edging Sections: If your edging comes in sections, overlap the sections slightly and secure them together according to the manufacturer’s instructions. Some edging features interlocking joints, while others may require the use of connectors or fasteners.
- Backfilling and Compacting: Once the edging is installed and the stakes are in place, backfill the trench with soil and compact it firmly around the edging. This will provide additional support and prevent the edging from shifting.
Reinforcement Techniques: Adding Extra Stability
In some cases, especially in challenging soil conditions or areas with heavy traffic, additional reinforcement may be necessary. Here are some techniques to consider:
- Using Landscape Fabric: Installing landscape fabric behind the edging can help prevent soil erosion and weed growth, which can contribute to edging instability. The fabric acts as a barrier, preventing soil from washing away and undermining the edging.
- Adding Concrete or Mortar: For a more permanent solution, consider using concrete or mortar to secure the edging in place. This is particularly useful for edging that borders driveways or walkways. Be sure to allow for proper drainage to prevent water from accumulating behind the edging. Apply concrete behind the edging to strengthen and prevent the movement of the plastic.
- Installing Additional Stakes: If you’re still experiencing problems with your edging shifting, consider adding additional stakes. This will provide extra holding power and help to keep the edging in place. Place the additional stakes between the existing stakes for maximum effectiveness.
- Using Metal Edging Alternatives: While this article focuses on plastic edging, it’s worth noting that metal edging offers superior durability and stability. If you’re consistently struggling with plastic edging, consider switching to a metal option.
Addressing Specific Challenges: Curves, Slopes, and Heavy Traffic Areas
Certain situations present unique challenges for plastic edging. Here’s how to address them:
- Curves: When installing edging along curves, use a flexible type of edging that is specifically designed for this purpose. Cut small slits in the back of the edging to allow it to bend more easily. Use more stakes along curves to provide adequate support.
- Slopes: Slopes are particularly prone to erosion, which can undermine edging. Use terracing or retaining walls to create level areas before installing the edging. Install landscape fabric behind the edging to prevent soil erosion.
- Heavy Traffic Areas: Areas with heavy foot or vehicle traffic require extra reinforcement. Consider using a thicker, more durable type of edging. Install concrete or mortar behind the edging for added stability. Use additional stakes to prevent shifting.
Maintaining Your Edging: Long-Term Care
Once your plastic edging is securely installed, it’s important to maintain it properly to ensure its long-term stability and appearance.
- Regular Inspections: Regularly inspect your edging for any signs of damage or shifting. Address any problems promptly to prevent them from escalating.
- Weed Control: Keep the area around the edging free of weeds. Weeds can grow behind the edging and exert pressure on it, causing it to shift.
- Soil Management: Monitor the soil level behind the edging. If the soil level drops due to erosion, add more soil to provide support.
- Cleaning: Clean the edging periodically to remove dirt, debris, and algae. This will help to maintain its appearance and prevent it from becoming brittle.
Choosing the Right Type of Plastic Edging
Selecting the appropriate type of plastic edging is critical for the success and longevity of your landscaping project. Different types cater to various needs and aesthetic preferences.
Types of Plastic Edging
- Coiled Edging: This flexible edging is ideal for creating curves and borders around flower beds. It’s typically made from polyethylene and is easy to install.
- Rigid Edging: Rigid edging offers a more defined and structured look. It’s suitable for straight lines and borders along walkways and driveways. It is generally more durable than coiled edging.
- No-Dig Edging: This type is designed for easy installation without the need for digging a trench. It typically features spikes or anchors that are driven into the ground. Although convenient, it may not be as secure as traditional edging.
- Recycled Plastic Edging: Made from recycled materials, this eco-friendly option is a sustainable choice for environmentally conscious homeowners.
Factors to Consider When Choosing Edging
- Flexibility: Consider the shape of your landscaping. If you have curves, choose a flexible edging. If you have straight lines, rigid edging may be a better option.
- Durability: Choose a durable edging that can withstand the elements and resist damage from lawnmowers and other equipment.
- Aesthetics: Select an edging that complements the style of your home and landscaping. Plastic edging comes in a variety of colors and styles.
- Ease of Installation: Consider your skill level and the amount of time you’re willing to spend on installation. No-dig edging is the easiest to install, while traditional edging requires more preparation.
- Budget: Plastic edging is generally affordable, but prices can vary depending on the type and quality. Set a budget before you start shopping.
By carefully considering these factors and selecting the right type of plastic edging for your specific needs, you can create a beautiful and well-defined landscape that will last for years to come.
In conclusion, keeping plastic edging in place requires a combination of proper planning, careful installation, and regular maintenance. By understanding the factors that contribute to edging failure and implementing the strategies outlined in this article, you can ensure that your landscaping remains beautiful, well-defined, and trouble-free. Investing the time and effort upfront will save you headaches and frustration in the long run. Remember, a well-maintained landscape not only enhances the curb appeal of your home but also provides a welcoming and enjoyable outdoor space for you and your family.
Why is my plastic landscape edging constantly popping out of the ground?
Several factors can contribute to plastic landscape edging repeatedly failing to stay in place. The most common culprits include improper installation techniques, such as not burying the edging deeply enough or failing to use sufficient stakes. Another frequent issue is the type of soil. Loose or sandy soil doesn’t provide adequate grip, leading to the edging gradually working its way out. Furthermore, extreme temperature fluctuations can cause the plastic to expand and contract, loosening the stakes and ultimately dislodging the edging.
Beyond installation and soil issues, the quality of the edging itself plays a crucial role. Cheaper, thinner plastic edging is more susceptible to warping and cracking, making it more difficult to secure effectively. Additionally, high foot traffic or the impact from lawnmowers can contribute to the edging becoming dislodged over time. Ensuring you select a durable edging product and implement a robust installation method is key to preventing future issues.
What is the best type of stake to use for securing plastic landscape edging?
The best type of stake for securing plastic landscape edging depends on the soil type and the style of edging used. For standard edging with molded stake slots, heavy-duty plastic or metal stakes with barbed or spiral designs are generally recommended. These types of stakes provide a superior grip in the soil, preventing them from easily pulling out. The length of the stake is also important; longer stakes offer greater stability, especially in softer soils.
For more flexible edging, or edging installed along curves, consider using flexible stakes designed to bend without breaking. These stakes allow for smoother curves and prevent the edging from becoming distorted. Regardless of the stake type, ensure that they are made from weather-resistant materials to prevent rust or degradation over time. The number of stakes used is equally vital; spacing them closer together, especially in areas with unstable soil, provides added security.
How deep should I bury plastic landscape edging?
The ideal depth for burying plastic landscape edging varies slightly depending on the height of the edging and the desired aesthetic. A general rule of thumb is to bury at least half the height of the edging, leaving the remaining portion visible above ground. For example, if the edging is 4 inches tall, bury at least 2 inches of it. This provides sufficient stability and prevents the edging from easily tipping over.
Burying the edging too shallowly leaves it vulnerable to being dislodged by foot traffic or lawnmowers. Conversely, burying it too deeply can make it difficult to see and may negate its aesthetic purpose. It’s also important to consider the level of the surrounding soil and mulch when determining the burial depth. You want the top of the edging to create a clean, defined edge that effectively separates the lawn or garden bed.
Can I use glue or adhesive to help hold plastic landscape edging in place?
While glue or adhesive might seem like a quick fix, it’s generally not recommended as a primary method for securing plastic landscape edging. The effectiveness of glue or adhesive depends heavily on the type of material used, the condition of the soil, and the weather. Many adhesives are not designed to withstand the constant exposure to moisture and temperature fluctuations that outdoor edging experiences.
However, in certain situations, construction adhesive can be used sparingly to help stabilize sections of edging, particularly along hard surfaces like concrete or brick. Ensure the surfaces are clean and dry before applying the adhesive. It is crucial to remember that adhesive alone won’t provide long-term stability, so it should only be used in conjunction with proper staking and burying techniques.
How do I keep plastic edging straight when installing it?
Maintaining a straight line when installing plastic landscape edging requires careful planning and execution. Before starting, use a string line or a garden hose to mark the desired path of the edging. This will serve as a visual guide and help ensure a consistent, straight line. When digging the trench, follow the marked line closely, ensuring the trench is of uniform depth.
As you install the edging, continuously check its alignment against the string line or hose. Use a level to ensure the edging is sitting vertically and not leaning to one side. Place stakes frequently, especially along sections that tend to bend or curve. Backfilling the trench with soil and tamping it down firmly will further help stabilize the edging and maintain its straightness.
How do I prevent grass from growing through the plastic edging?
Preventing grass from growing through plastic landscape edging requires a combination of careful installation and ongoing maintenance. Start by ensuring the edging is buried sufficiently deep, creating a physical barrier against grass roots. Overlapping the edging slightly at the seams can also help prevent grass from creeping through.
Regularly inspect the edging and remove any grass or weeds that sprout near it. Applying a pre-emergent herbicide along the edge can prevent weed seeds from germinating. Additionally, maintaining a thick layer of mulch on the garden bed side of the edging can suppress weed growth and make it easier to remove any that do appear. A physical barrier such as landscape fabric placed behind the edging can also minimize weed intrusion.
What should I do if my plastic edging becomes brittle and cracks?
If your plastic edging becomes brittle and cracks, it’s a sign that the material has deteriorated due to prolonged exposure to sunlight, weather, or low-quality plastic. Unfortunately, cracked or brittle edging cannot typically be repaired effectively. Attempting to glue or patch it will likely only provide a temporary solution that will quickly fail.
The best course of action is to replace the damaged sections of edging with new, high-quality material. When replacing the edging, consider upgrading to a more durable type, such as metal or composite edging, which is less susceptible to cracking and weathering. Ensure proper installation techniques are followed to maximize the lifespan of the new edging. Regular maintenance, such as cleaning and protecting it from direct sunlight when possible, can also extend its lifespan.