Answer: In general, all kinds of dead dry tree leaves are an excellent form of fibrous organic material to add to the soil. This tremendous source of humus improves the soil structure and also contains many valuable minerals. While some types of leaves may contain more or less of the various minerals, they are all worth adding. Most gardeners use whatever types of leaves are most easily available. Some gardeners prefer to dig the leaves into the soil in the fall, others prefer to shred them and add them to the compost pile. Still others prefer to use the leaves in the form of leaf mold. The only type of leaf I would not recommend for home garden use is that of the black walnut tree.
Q&A Library Searching Tips