Does Artificial Grass Get Mouldy? 


Artificial grass has gained popularity as a low-maintenance alternative to natural grass, offering numerous benefits such as water conservation and reduced maintenance requirements. However, there are misconceptions surrounding the potential for mould growth on artificial grass. In this article, we aim to debunk the myth and provide a clear understanding of how artificial grass interacts with mould and the measures you can take to prevent mould growth. 

Mould and artificial grass 

Contrary to popular belief, artificial grass itself does not promote mould growth. Mould requires organic matter, moisture and a suitable temperature to thrive, none of which are typically found in artificial grass materials. Artificial grass is made from synthetic fibres, such as polyethylene or polypropylene, which are resistant to mould and do not provide a suitable environment for its growth. 

Why proper drainage is important 

While artificial grass does not promote mould growth, inadequate drainage can create conditions where mould can develop. Proper drainage is crucial to prevent moisture buildup, which can occur when water is unable to flow through the grass backing and base material. To help maintain a dry and mould-free artificial grass surface, ensure a well-designed drainage system during the installation process. 

The synthetic grass is not at fault here 

Mould growth near or around artificial grass is often a result of underlying factors unrelated to the grass itself. Poor water drainage in the surrounding area, improper landscape grading or water seepage from nearby structures can lead to mould growth. It is important to identify and address these underlying issues to prevent mould from spreading to the artificial grass. 

Importance of regular maintenance and cleaning 

While artificial grass is low-maintenance, routine cleaning is necessary to prevent debris buildup and ensure optimal performance. Regularly removing leaves, twigs and other organic matter from the surface helps prevent the accumulation of materials that could potentially contribute to mould growth. Additionally, occasional cleaning with a mild detergent and water can help maintain the cleanliness of the artificial grass and prevent any mould-related issues. 

Promoting air circulation and sunlight exposure 

Mould thrives in damp and poorly ventilated areas. Maximizing air circulation and sunlight exposure in the vicinity of the artificial grass helps keep the surface dry and inhibits mould growth. Trimming nearby shrubs or trees to allow proper airflow and sunlight penetration can significantly reduce the risk of mould formation. 

Key points to remember 

Contrary to popular belief, artificial grass does not inherently promote mould growth. However, poor drainage, underlying issues in the surrounding area and lack of maintenance can create conditions conducive to mould development. By ensuring proper drainage, addressing underlying issues, performing regular cleaning and promoting air circulation and sunlight exposure, you can effectively prevent mould growth on and around your artificial grass. Artificial grass remains a durable, low-maintenance option for outdoor spaces, offering the benefits of a lush green lawn without the risk of mould-related issues associated with natural grass. 

With those things in mind, now you might want to know whether artificial grass is right for your property or project. To answer your questions, you can enquire here at Grass Rubber Play. We have worked on small back garden lawns and large-scale projects for commercial properties, school playgrounds and sports facilities.