Place the coconut liner on the planter and press it down until it fits snugly. Trim off any excess around the top using a pair of scissors. Put a piece of plastic or a plastic bag inside the planter and then trim off the top 1/2 inch below the top of the coconut lining. Fill the planter with damp potting soil. Click to see full answer. Hereof, how do you cut a coco liner? Scissor – To cut the coconut fiber liner. First draw a dot with the marker in the center of the liner. Use a marker to mark a line on each side of the folds as shown in the photo. Next take the liner out of the hanging basket and place it flat. Next cut a small triangle between one of the sets of guide lines as shown. Secondly, what can I use instead of coco liners? If you prefer the look of the coconut liners over the landscaping fabric, another great alternative wire basket liner is burlap. A burlap liner will give you a similar look as the coco liners, but will last longer. Similarly, can you grow plants in coconut fiber? By itself, the fiber is not very absorbent and will break down over time, which decreases how much air gets to the roots of your plants. Coco chips are small chunks of coir that combine the best properties of the peat and fiber. Coco chips retain water well, but also allow for air pockets, too.What do you line window boxes with?Flower or window box liners are plastic trays or sheets of coconut fiber material used to line the bottom of flower or window boxes and planters before potting plants with soil inside. There are so many reasons to use liners, especially in places where the weather conditions are in the extremes.