Answer: It is possible to compost in plastic bags. It is called anaerobic composting (without air) and you fill the bag with a combination of green and brown materials plus a shovelful of garden soil (to introduce micro-organisims). Green materials are those high in nitrogen, such as freshly mowed lawn. You can also compost kitchen scraps (nothing with grease or high in fat). You can use virtually anything else for your compost, including dried grass, green or brown leaves, even newspaper. Just try to have a mixture of different materials and your compost should be just fine. It's not an exact science, just a way to reduce the materials you send to the landfill. After filling the bag, secure the top and lay it on its side in the sunshine. The heat it absorbs will start the decomposition process. Turn the bag every few days and eventually everything will decompose. The finished product, because no air was circulating, is likely to be wet and odorous, can then be spread out in the garden to further dry out and decompose.
Best wishes with your compost adventure!
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