The herbs chamomile, valerian, yarrow, nettle, comfrey and dandelion can help make a success of your compost heap. Bio-dynamic gardening, developed in Germany, is a method of soil stewardship that has gained international attention. Due to chemical constituents or the nature of its biological activity, these plants can be used to encourage the growth of certain crops or inhibit unwanted ones. For some reason, the six herbs mentioned, act on compost to speed and complete the decay process. Some people put fresh herbs into the pile if they have them, while others make a strong tea of all or some of the plants, poke a hole into the heap and pour it in.
Dandelions create humus around themselves, doing the same kind of work that earthworms do.
Chamomile has been used to increase production of wheat, tomatoes and other herbs. It helps them to grow better and releases fungal inhibitors. Recycling your weeds is no danger either, if done property. First, by adding the herbs, the compost remains hot which kills most seeds, but it may not kill rhizomes. Seedy weeds, then, need to be placed in the hottest section of the pile- near the bottom center.