Awhile ago, my husband and I decided to put a hold on our backyard design project until the economy levels off. This of course took place after we had ripped out most of the existing plants and installed drainage and irrigation materials. So we had a lovely expanse of dirt we were perfectly willing to live with (which many students have seen if you've come to a class at the house and test garden).
Of course, what happens when you have a large expanse of dirt? You get weeds.
We needed mulch to cover the dirt. Lots of ...