I think the difference in price is due to the difference in materials
being delivered. Triple ground hardwood (which Doc quoted at $18/cubic
yard) is different than cypress mulch which runs about $1.15 per cubic
foot ($2.30 for 2 cu.ft.bag or $31.05 per cubic yard in bags) I find
that the cypress mulch lasts about three years where the general
hardwood triple shred is gone after two years.