Yes, in some cases some certain types of hardy grass such as Bermuda or St. Augustine can grow through the liner. So before setting up your pool, it is important that you should clear up the area of these types of hardy grasses. Jilong will not be held responsible for grasses that may grow through the ground cloth and / or pool liner, as this is not a manufacturing defect. A ground cloth or tarp may be helpful in preventing this from occurring.