Many of us enjoy a cup of coffee or tea every day and it's good to know that our gardens may also enjoy the 'dregs' of these drinks. Let's learn more about the benefits of using tea bags to promote plant growth. Can I put tea bags in my garden? So the question is, "Can I put tea bags in my garden?" . The resounding answer is "yes", but with a few caveats. Damp tea added to the compost bin will increase the rate of compost decomposition. When using tea bags as fertiliser, either in the compost bin or directly around plants, first try to determine whether the bags themselves are compostable - 20 to 30 per cent may consist of polypropylene that does not break down. These types of tea bags may be slippery to the touch and have heat-sealed edges. If this is the case, cut open the bag and discard in the rubbish (trash) and keep the moist tea for composting. 0 seconds 0 seconds volume 0% If you are unsure of the composition of the bags when composting t