What is a plant grow bag?

Grow bags are lightweight fabric-like bags, usually made out of polypropylene, designed to hold growing media like potting soil or Pro-Mix and plants. Grow bags come in a variety of sizes and offer superior drainage and excellent aeration for the plants growing in them. This aeration offers another benefit, root pruning. Unlike plastic pots, fabric pots encourage a more robust root system with more feeder roots formed. These are the best grow bags, as they can be easily moved because they have convenient handles. Grow bags can be used during the whole growing season, as they are a great option for housing dormant plants during the colder winter months.