The use of oak leaves in a flower garden.
Are there benefits or detriments in using oak leaves mixed with garden soil? If so, please explain. Thank you, Ed.
Certified GKH Gardening Expert
It is always best to compost the leaves fully before using them in the soil. It can be used as a mulch, but unmulched oak leaves can rot, or even slightly change the soil pH. I would not recommend this. If you decide to do this still, then you will want to add mycorrhizae to the soil to help it break down faster.