Ethan Clarke
Plastic is sometimes found under lawns, often in the form of plastic mesh or netting, or black plastic sheeting. Plastic mesh is commonly found under sod, which is grass that comes in square or rectangular patches and is ordered from a farm. The mesh helps keep the shape of the sod intact during transportation and can also prevent soil erosion and root dehydration. However, plastic under lawns can be detrimental, creating an eyesore and causing issues for wildlife and gardeners. Homeowners often have to rip out the plastic and start fresh with their lawns. Black plastic sheeting is also sometimes used to kill weeds and grass to make space for a vegetable garden, but it is not recommended for use under lawns.
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What You'll Learn
Plastic under lawns is often a type of weed barrier
Plastic is sometimes placed under lawns as a weed barrier. This is done to prevent weeds from growing and to create space for vegetable gardens or new flower beds. Black plastic mulch, for example, is an eco-friendly way to clear land without the use of herbicides.
While plastic under lawns is often used as a weed barrier, it can also be used to hold the soil together during transportation, ensuring the soil is compact and preventing grass-root hairs from losing moisture. This is especially common with sod, which comes in square or rectangular patches and can be ordered from farms. The plastic mesh added to sod helps to hold the shape of the patch during transportation and can be beneficial for lawns on hills to prevent bunching and slouching.
However, plastic netting or mesh under lawns can become a problem over time. As grass grows, the mesh can become distorted and may start to peek through, giving the lawn an unkempt appearance. It can be challenging to remove, especially as it becomes entangled with grass roots. Homeowners may need to manually rip out the plastic and start over with their lawns.
In addition, plastic under lawns can negatively impact wildlife, as it can prevent animals like squirrels from burying nuts for the winter. It can also create a hazard for gardeners, who may accidentally shoot large metal pins used to hold down plastic netting with a mower or step on them.
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Plastic can be used to kill weeds and grass
While plastic can be an effective tool for killing weeds and grass, it is important to exercise caution when using it. Some gardeners have reported finding plastic netting or mesh in their turf, which can be challenging to remove and detrimental to the health of the lawn. This plastic netting is often added to sod during transportation to help hold the soil together and protect the young grass roots. However, it can become distorted by root growth and may eventually break into tiny pieces that spread across the lawn.
To avoid the hassle and potential problems associated with plastic netting, it is recommended to thoroughly inspect any rolls of turf before purchasing them by cutting into them and examining the inside for any plastic mesh. If plastic netting is already present in an existing lawn, it can be removed by hand or with the help of a turf cutter. However, this process can be time-consuming and labour-intensive, requiring the removal of large sections of the lawn to access the plastic underneath.
Additionally, when using plastic to kill weeds and grass, it is important to consider the potential impact on the root systems of nearby trees and the overall health of the soil. While plastic can be effective in killing weeds and grass, it may not be the best long-term solution for maintaining a healthy lawn. Regular maintenance, such as mowing, watering, and adding compost and manure, can help promote a lush and green lawn without relying on plastic.
Overall, while plastic can be used as a tool to kill weeds and grass, it should be used with caution and complemented with proper lawn care practices to ensure the long-term health and aesthetics of your lawn.
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Plastic netting in turf can be dangerous for wildlife
Plastic netting in turf is dangerous for wildlife. The plastic used in turf netting is often labelled as "degradable", but this does not mean it is biodegradable. Instead, it is susceptible to chemical breakdown, causing it to break down into smaller pieces of plastic and microplastics over time. This contributes to plastic pollution in the environment, as the microplastics can be ingested by animals or enter water sources and eventually the sea.
Additionally, plastic netting can directly harm wildlife. Birds and mammals can become entangled in the netting, and burrowing animals can become trapped. For example, a bird with an orange chest was found trapped on the ground, having wrapped itself in plastic netting in a struggle to break free. Another incident involved a bird whose foot and toes had gotten caught in plastic netting, requiring human intervention to cut it free. A large black snake in Union County was also trapped and injured by plastic netting, likely suffering significant injuries.
The presence of plastic netting in turf also has indirect negative consequences for wildlife. It can get caught in lawn mowers and weed whackers, making yard work more challenging and increasing the risk of accidental harm to wildlife. Netted turf makes repairing lawns and making adjustments to gardens more difficult.
To avoid the dangers of plastic netting in turf, it is essential to ensure that any sod or erosion control blankets used contain no polyurethane or other plastic materials. There are good-quality erosion control blankets made from natural fibres like coconut fibre, straw, and wood excelsior. When installing turf, consider seeding your lawn instead of using turf with plastic netting. By taking these precautions, we can create safer environments for wildlife and contribute to reducing plastic pollution.
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Plastic sheeting under lawns can negatively impact soil quality
Secondly, plastic sheeting can act as a barrier to essential root growth. Healthy root systems are vital for plant health, and by restricting their growth, plastic sheeting can indirectly impact soil quality. Roots not only anchor plants but also play a crucial role in nutrient uptake and water absorption, both of which are essential for maintaining fertile soil.
Additionally, plastic sheeting can interfere with the natural process of soil aeration. Aeration is necessary to relieve soil compaction, improve drainage, and promote the growth of beneficial microorganisms. By impeding aeration, plastic sheeting contributes to soil degradation and negatively affects the overall health of the lawn.
The presence of plastic sheeting under lawns can also hinder gardening and landscaping activities. It can make tasks like pulling weeds, removing rocks, and mowing the lawn more challenging and potentially hazardous due to the risk of catching the plastic in mower blades or stepping on large metal pins used to hold the plastic down.
Furthermore, plastic sheeting under lawns can be detrimental to wildlife. Animals, such as squirrels, may struggle to bury nuts or interact with the soil in a natural way due to the presence of the plastic mesh. This disruption to their natural behaviour can have a negative impact on both the individual animals and the wider ecosystem.
Homeowners who wish to improve their lawn's health and promote healthy soil are advised to remove the plastic sheeting. While this may involve a laborious process of digging up the lawn and starting anew, it is worth the effort to restore soil health and create a more welcoming environment for both wildlife and the plants themselves.
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Plastic mesh is added to sod to help keep its shape during transportation
Plastic mesh is often added to sod to help keep its shape during transportation. When lawn grass is being planted for the first time, sod is typically ordered from a farm. It comes in square or rectangular patches, ready to be rolled out and positioned on top of the prepared soil. The plastic mesh helps to hold the sod together during transportation and prevents the soil from dropping and exposing the young lawn-grass roots.
The mesh also ensures that the soil is compact, which helps the grass-root hairs retain moisture during and after transport. Additionally, the mesh can protect young grass from the elements, especially in erosion-prone areas. While plastic mesh can be beneficial during the transportation and installation of sod, it may cause issues in the long run. Over time, the mesh can become distorted by root growth and may start to peek through in heavily trodden regions, giving the lawn an unkempt appearance.
Removing plastic mesh can be challenging, especially if it has been in place for many years. Homeowners may need to manually rip up the lawn, remove the mesh, and then replant new grass, which can be time-consuming and labour-intensive. In some cases, metal pins are used to hold the mesh in place, raising safety concerns for those using lawnmowers or stepping on the pins.
To avoid these issues, it is recommended to examine the sod thoroughly before purchasing it and ensure that it does not contain any plastic mesh. If plastic mesh is present, it is much easier to remove it before the sod is laid down. Alternatively, biodegradable mesh can be used, which will naturally disappear over time without affecting the lawn.
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Frequently asked questions
Plastic is sometimes used under lawns as a weed barrier or to kill weeds and grass to make space for a vegetable garden. It is also used to keep the rectangular shape of sod during transportation and to hold the soil, preventing it from dropping and exposing the young lawn-grass roots.
Removing plastic from under a lawn can be a tedious task. Some people choose to manually rip out the plastic and roll the lawn back. Others suggest hiring a turf cutting machine or contracting a turf cutter for the day to remove the top layer.
Alternatives to using plastic under lawns include using cardboard and a water-permeable weed membrane, which allows water to still get through while blocking light.
Plastic under lawns can be a nightmare for wildlife and gardeners. It can be difficult to remove, especially as it becomes distorted by root growth over the years. It can also be an eyesore, with the potential to turn into uncountable, unmanageable tiny pieces spread all over the lawn area.
The type of plastic used under lawns is typically a fine mesh, which can be biodegradable or non-biodegradable. Biodegradable mesh is very expensive but will naturally disappear over time without affecting the lawn.
