A plastic Garden bed can be made from many different types of plastic materials. Most plastics are rated as safe for use in food-producing environments. Among these types of plastic, food-grade polyethylene is the safest choice. However, you should be careful not to over-line your plastic garden bed with plastic, since you want to keep the drainage of your soil intact. To ensure the safety of your plastic bed, you should conduct your own research on the safety of plastic. There are many reputable sources for this purpose.
Before you start planting in your plastic Garden bed, make sure that it is level and overhanging. Then, tuck the edges between the soil and the raised bed walls to prevent them from touching the plant stems. Remember to make a 3-inch-diameter planting hole. Don't cut plastic mulch too close to the plant's stems, as this will burn the plant roots. You can also choose to use a combination of raised beds and flat-topped garden boxes.
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