Contractors License No. 906546
DIR No. 1000011263
Certified Small Business No. 1798372
Tip: How much "landscape" mulch do I need?
3" is the recommended depth for areas that have a base of bark down. If it is the first time you are putting bark down or it has been so long that you can see the roots of your trees and mostly bare dirt, then 4" is ideal to re-establish a base due to the uneven ground that is exposed.