The GARDENA gardening expert answers
If you literally only add goutweed leaves or stems without any root bits or seeds to your compost, nothing will happen. Not even resilient goutweed can regenerate in this way. Leaves, leaf stems and flowers can all be composted. You can let the material wilt at the surface first; then you have less bulk to transport. Or you can compost it on the surface straight away. Especially if it is very hot, the material dries very quickly and can then be dug directly into the soil.
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