Why in the name of all that is horticulturally holey do we continue to see mulch piled around tree trunks to stratospheric heights? What is the appeal? And, why can't we stamp out these mulch monstrosities despite years of educational efforts?
When It's Done Right
Organic mulches such as aged bark mulch are a wonderful thing. They moderate soil temperatures, preserve soil moisture, suppress weeds, and as the organic mulch slowly decays, it contributes to the organic content of the underlying soil. The dark color of natural bark mulch also enhances landscape aesthetics. Of course, the availability of organic mulch dyes makes other colors available; shopping for mulch can be like using an artist's palette.