|I need to purchase mulch for my gardens, but I don't know how much to put down.|
|Here's a link to a calculator to determine how much mulch you'll need:
In general, a 2" layer of mulch will suppress weeds, slow evaporation and moderate soil temperatures. Measure your garden area, then visit the above mentioned website. Enter the thickness of mulch and the square footage of your garden and it will return the calculation for you.
Best wishes with your garden!