| Effective mulches have a markedly different texture from the soil beneath, enabling them to function as a barrier to the movement of moisture out of the soil, and to interfere with the growth of weed seeds. The best mulch I have used is wood chips from a cedar mill, obtained through a bark and soil dealer. However, I have heard recently these are no longer available to us - having been diverted to another use. Fine-textured mulches like composted materials resembling the soil beneath are not as successful. |
Here is a link that might be useful: Myth of Pretty Mulch
